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Patel A, Foreman M, Tabarestani A, Sheth S, Mumtaz M, Reddy A, Sharaf R, Lucke-Wold B. Endovascular Chemotherapy: Selective Targeting for Brain Cancer. INTERNATIONAL JOURNAL OF MEDICAL AND PHARMACEUTICAL RESEARCH 2022; 4:50-63. [PMID: 36713939 PMCID: PMC9879286 DOI: 10.5281/zenodo.7512303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Establishing an effective and robust management option for brain cancers has proven to bean elusive challenge for the fields of neurosurgery and neuro-oncology. Despite decades of research efforts to improve treatment outcomes and increase patient survivability, brain cancer remains among the most fatal of all cancer classes. A significant barrier to this endeavor is the blood-brain barrier, a major protective border for brain tissue that primarily precludes the optimal delivery of chemotherapeutic drugs to the patient's brain circulation through tight junction formations and selective transporter proteins. This issue is often compounded by tumor location, particularly in inoperable regions near functional brain parenchyma. These obstacles necessitate the development of selectively targeted delivery of chemotherapeutic agents, such as endovascular super-selective intra-arterial injections. Recent experimental studies demonstrate the effectiveness of focused ultrasound to unseal the blood-brain barrier selectively and reversibly. Together, these new technologies can be leveraged to circumvent the limited permeability of the blood-brain barrier, thus improving drug delivery to tumoral locations and potentially enabling a more effective treatment alternative to surgical resection. This review attempts to place into context the necessity of these newer selective chemotherapeutic modalities by briefly highlighting commonly encountered brain cancers and explaining the prominent challenges that face chemotherapy delivery, as well as describing the current preclinical and clinical progress in the development of facilitatory focused ultrasound with selective endovascular chemotherapy.
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Affiliation(s)
- Aashay Patel
- College of Medicine, University of Florida, Gainesville, FL
| | - Marco Foreman
- College of Medicine, University of Florida, Gainesville, FL
| | | | - Sohum Sheth
- College of Medicine, University of Florida, Gainesville, FL
| | | | - Akshay Reddy
- College of Medicine, University of Florida, Gainesville, FL
| | - Ramy Sharaf
- College of Medicine, University of Florida, Gainesville, FL
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Li J, Zan X, Feng M, Deng X, Zhang S, Liu W. Case Report: Creeping Growth in Lymphoplasmacyte-Rich Meningioma-A Radiologic Variant. Front Surg 2022; 8:775560. [PMID: 34970592 PMCID: PMC8712332 DOI: 10.3389/fsurg.2021.775560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/15/2021] [Indexed: 02/05/2023] Open
Abstract
Lymphoplasmacyte-rich meningioma (LRM) is a rare histologic subtype of meningioma. Creeping-growth pattern is uncommon in meningioma, and the mechanism is unclear. Here, we report a 44-year-old man presented with extremities weakness for 2 months and incontinence for 2 weeks. Head and neck MRI revealed diffuse creeping-growth nodular meningeal masses with skull base, tentorium, sella area, and C1-6 vertebral plane involvement. An operation was carried out, cervical and lower clivus part of the lesion was resected, but gross total resection could not be achieved due to the widespread lesions. Pathologic examination revealed the diagnosis of LRM. The patient is free from progression clinically 3 months postoperatively. We also conducted a systematic literature review about LRM with creeping-growth pattern. A total of only nine cases (including the present case) of creeping-growth LRMs were included and analyzed in terms of clinical manifestations, radiological features, treatment, and outcome. LRMs show a higher rate (7.5%) of creeping-growth pattern than other types of meningiomas. The average creeping length of all creeping-growth LRMs was 11.4 ± 10.9 cm (range, 3–30 cm). Most cases (66.7%) had obvious peritumoral edema. Total removal rate is low (33.3%), and two of them (22.2%) received biopsy, followed by steroids treatment (or further immunosuppressive drugs therapy) and radiotherapy. The recurrence rate is higher than conventional LRMs (22.2 vs. 11.3%), and one patient (11.1%) died 11 months after treatment. Creeping-growth pattern in LRM may be considered as a general radiologic variant. The recurrence rate is higher compared with LRM with round/swelling pattern. We speculated that the pathogenesis of creeping growth in LRM may be associated with damage of lymphatic systems of the central nervous system.
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Affiliation(s)
- Jiuhong Li
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China.,West China School of Medicine, Sichuan University, Chengdu, China
| | - Xin Zan
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Min Feng
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | - Xueyun Deng
- Department of Neurosurgery, The Second Clinical Medical College of North Sichuan Medical College, Nanchong Central Hospital, Nanchong, China
| | - Si Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Wenke Liu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
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153
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Choudhary R, Elabbas A, Vyas A, Osborne D, Chigurupati HD, Abbas LF, Kampa P, M H F, Sarwar H, Alfonso M. Utilization of Cerebrospinal Fluid Proteome Analysis in the Diagnosis of Meningioma: A Systematic Review. Cureus 2021; 13:e20707. [PMID: 34966627 PMCID: PMC8710292 DOI: 10.7759/cureus.20707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/26/2021] [Indexed: 12/17/2022] Open
Abstract
Meningiomas have been classified as the most commonly occurring primary brain tumors. Although the majority of meningiomas are benign and slow-progressing, the tumors that grow to a larger size are associated with various risks during surgical procedures. Early detection of meningiomas is crucial to the treatment as those detected early can be treated through non-invasive methods. Due to their benign nature, meningiomas contain homogeneous protein biomarkers that can be easily identified. Cerebrospinal fluid (CSF) has a high protein composition which can be used to diagnose various brain tumors. Because CSF comes into direct contact with the brain during its functioning, it is one of the factors that makes it an important source of different biomarkers. An analysis of biochemical changes occurring in the CSF can be useful in assessing the condition of the periventricular white matter and the parenchyma. In this review, PubMed, Medline, PubMed Central, and Google Scholar were used to identify studies discussing meningiomas regarding their assessment, types, diagnosis, and treatment, with more attention directed towards the application of CSF proteome analysis in diagnosis. Priority was given to studies published within the last 15 years. The following keywords were used in the literature search: “cerebrospinal fluid,” “meningiomas,” “brain tumors,” “primary brain tumors,” “protein biomarkers,” “proteome analysis,” and “diagnosis.” Subsequently, the 15 most relevant studies were selected for inclusion in the review. We excluded studies discussing different types of non-brain tumors as well as older articles. The selected studies also underwent a quality appraisal process using corresponding assessment tools. The selected articles were highly informative about meningiomas and the processes of diagnosis and treatment that are currently in use as well as those that are being developed or implemented. The use of CSF proteins in the diagnostic process is also discussed in this review. The studies also describe proteomics as a less invasive procedure that allows for the analysis of entire proteins and the projection of diagnostic images with higher resolutions that aid in the diagnosis.
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Affiliation(s)
- Rabia Choudhary
- Emergency Medicine, Internal Medicine, Neurology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Adil Elabbas
- Radiology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Abhishek Vyas
- Family Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Darin Osborne
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Himaja Dutt Chigurupati
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Lawahiz F Abbas
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Prathima Kampa
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Farzana M H
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Hooria Sarwar
- Psychiatry, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Michael Alfonso
- Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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154
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Raymond P, Klein M, Cuny T, Klein O, Salleron J, Bernier-Chastagner V. High prevalence of anterior pituitary deficiencies after cranial radiation therapy for skull base meningiomas. BMC Cancer 2021; 21:1346. [PMID: 34922472 PMCID: PMC8684631 DOI: 10.1186/s12885-021-09045-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 11/18/2021] [Indexed: 11/23/2022] Open
Abstract
Background Cranial irradiation represents one of the first line treatment proposed in skull base meningiomas. While cranial irradiation is associated with a high risk of secondary hypopituitarism, few studies focused on the specific location of skull base meningiomas. Methods Fifty-two adults receiving photon-beam therapy for skull base meningiomas between 2003 and 2014 in our Institution were included. Anterior pituitary (ACTH, FSH, GH, LH, TSH and prolactin) as well as corresponding peripheral hormones (8 am-Cortisol, IGF-1, fT3, fT4, 17βestradiol or testosterone) were biologically screened before radiotherapy (baseline), then yearly until March 2019. The pituitary gland (PG) was delineated on CT and the mean dose delivered to it was calculated. Results Mean age at diagnosis was 56 +/− 14 years. Median follow-up was 7 years. Up to 60% of patients developed at least ≥2 pituitary deficiencies, 10 years after radiotherapy. Gonadotroph, thyrotroph, corticotroph and somatotroph deficiencies occurred in 37, 28, 18 and 15% of patients, respectively. Hyperprolactinemia was found in 13% of patients. None patient had only one pituitary deficiency. In the multivariate analysis, a delivered dose to the PG ≥ 50 Gy or a meningioma size ≥40 mm significantly increased the risk of developing hypopituitarism. Conclusions Over a long-term follow-up, cranial radiation therapy used in skull base meningiomas led to a high prevalence of hypopituitarism, further pronounced in case of tumor ≥4 cm. These results advocate for an annual and prolonged follow-up of the pituitary functions in patients with irradiated skull base meningiomas.
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Affiliation(s)
- Perrine Raymond
- Department of radiation therapy, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, 54519, Vandoeuvre Les Nancy, France.
| | - Marc Klein
- Department of Endocrinology, University hospital CHU de Nancy, Rue du Morvan, 54500, Vandoeuvre Les Nancy, France
| | - Thomas Cuny
- Department of Endocrinology, Hôpital de la Conception, Aix Marseille Univ, APHM, Inserm, MMG, Marseille, France
| | - Olivier Klein
- Department of Neurosurgery, University hospital CHU de Nancy, Nancy, France
| | - Julia Salleron
- Department of biostatistics, Institut de Cancérologie de Lorraine, Université de Lorraine F-54519, 6 avenue de Bourgogne, 54519, Vandoeuvre Les Nancy, France
| | - Valérie Bernier-Chastagner
- Department of radiation therapy, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, 54519, Vandoeuvre Les Nancy, France
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155
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Han T, Zhang J, Liu X, Zhang B, Deng L, Lin X, Jing M, Zhou J. Differentiating atypical meningioma from anaplastic meningioma using diffusion weighted imaging. Clin Imaging 2021; 82:237-243. [PMID: 34915318 DOI: 10.1016/j.clinimag.2021.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 11/06/2021] [Accepted: 12/06/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE To explore the value of MRI conventional features and apparent diffusion coefficient (ADC) on the differential diagnosis of atypical meningioma (AtM) and anaplastic meningioma (AnM). MATERIALS AND METHODS This retrospective study analyzed the preoperative clinical data, MRI conventional features, and DWI data of 55 AtM and 25 AnM confirmed by pathology in our hospital. The clinical features, MRI conventional features, ADCmean, ADCmin, and relative ADC (rADC) values were compared between the two tumors by Chi-square test or an independent sample t-test. Receiver operating characteristic curve (ROC) and binary logistic regression analysis were used to evaluate the diagnostic efficacy of each parameter to differentiate between these tumors. RESULTS The MRI conventional features had a certain ability to distinguish AnM and AtM, with an area under the curve value (AUC) of 0.824 (95% CI, 0.723-0.900). The ADCmean, ADCmin, and rADC values were significantly higher in AtM compared to AnM (all P < 0.05). ADCmean had the best identification effect with an AUC of 0.867 (95% CI, 0.772-0.933) among them, at an cut-off of 0.817 × 10-3 mm2/s, the sensitivity and specificity of distinguishing AtM from AnM were 78.18% and 88.00%, respectively. A combination of ADCmean and MRI conventional features showed the optimum discrimination ability for the two tumors, the AUC, sensitivity, specificity, and accuracy were 0.918 (95% CI, 0.835-0.967), 80.00%, 94.55%, and 90.00%, respectively. CONCLUSION MRI conventional features combined with ADCmean, as a non-invasive method, has potential clinical value in the preoperative diagnosis of AtM and AnM.
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Affiliation(s)
- Tao Han
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Jing Zhang
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Xianwang Liu
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Bin Zhang
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Liangna Deng
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Xiaoqiang Lin
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Mengyuan Jing
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Second Clinical School, Lanzhou University, Lanzhou 730000, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China
| | - Junlin Zhou
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou 730030, China; Key Laboratory of Medical Imaging of Gansu Province, Lanzhou 730030, China; Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou 730030, China.
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156
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Chan HSC, Ng HK, Chan AKY, Cheng SH, Chow C, Wong N, Wong GKC. Establishment and characterization of meningioma patient-derived organoid. J Clin Neurosci 2021; 94:192-199. [PMID: 34863437 DOI: 10.1016/j.jocn.2021.10.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/24/2021] [Indexed: 01/03/2023]
Abstract
Meningioma is a central nervous system tumor originated from arachnoid cells. 2D cell culture is widely used as a platform for tumor research as it enables us to culture cells in in vitro and a controlled environment. However, in 2D culture condition, 3D architecture of in vivo tumor mass is lost and phenotypic change may occur. Due to the drawbacks of 2D cell culture, organoid culture is seen as an alternative platform for disease modeling, drug testing and personalized medicine. The objective of this study was to establishing protocol for culturing cells from patient meningioma tissue in in vitro 3D environment. Eight meningiomas were collected for the 3D organoid culture. Cells of 5 meningioma tissues survived and proliferated. Under 3D culture condition, cell aggregates were formed and cytoplasmic processes linking the cell aggregates could be observed. In H&E staining, ovaloid cells and spindle cells were observed. Resembling cultured organoids observed under the light microscope, cell aggregates were also observed in the H&E staining. Epithelial Membrane Antigen (EMA) staining was positive. In 4 (80%) cultured organoids, low Ki67 index (≤6%) were measured. In one cultured organoid, a high Ki67 index (12.8%) was seen. The result of this study revealed the feasibility of culturing meningioma cells in in vitro 3D culture condition. Organoid technology showed its potential as an alternative platform for meningioma research.
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Affiliation(s)
- Henry Siu Cheung Chan
- Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, 4/F, Department of Surgery, Lui Che Woo Clinical Sciences Building, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, NT, Hong Kong, China
| | - Ho Keung Ng
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Aden Ka-Yin Chan
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Sau Ha Cheng
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, N.T., Hong Kong, China
| | - Chit Chow
- Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Hong Kong, China
| | - Nathalie Wong
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, N.T., Hong Kong, China
| | - George Kwok Chu Wong
- Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, 4/F, Department of Surgery, Lui Che Woo Clinical Sciences Building, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, NT, Hong Kong, China.
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157
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Glycation Interferes with the Expression of Sialyltransferases in Meningiomas. Cells 2021; 10:cells10123298. [PMID: 34943806 PMCID: PMC8699175 DOI: 10.3390/cells10123298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/16/2022] Open
Abstract
Meningiomas are the most common non-malignant intracranial tumors and prefer, like most tumors, anaerobic glycolysis for energy production (Warburg effect). This anaerobic glycolysis leads to an increased synthesis of the metabolite methylglyoxal (MGO) or glyoxal (GO), which is known to react with amino groups of proteins. This reaction is called glycation, thereby building advanced glycation end products (AGEs). In this study, we investigated the influence of glycation on sialylation in two meningioma cell lines, representing the WHO grade I (BEN-MEN-1) and the WHO grade III (IOMM-Lee). In the benign meningioma cell line, glycation led to differences in expression of sialyltransferases (ST3GAL1/2/3/5/6, ST6GAL1/2, ST6GALNAC2/6, and ST8SIA1/2), which are known to play a role in tumor progression. We could show that glycation of BEN-MEN-1 cells led to decreased expression of ST3Gal5. This resulted in decreased synthesis of the ganglioside GM3, the product of ST3Gal5. In the malignant meningioma cell line, we observed changes in expression of sialyltransferases (ST3GAL1/2/3, ST6GALNAC5, and ST8SIA1) after glycation, which correlates with less aggressive behavior.
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158
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Carbone L, Somma T, Iorio GG, Vitulli F, Conforti A, Raffone A, Bove I, Pagano S, Pontillo M, Carbone IF, Farina A, Maruotti GM, Maiuri F, Cappabianca P, Alviggi C. Meningioma during pregnancy: what can influence the management? A case series and review of the literature. J Matern Fetal Neonatal Med 2021; 35:8767-8777. [PMID: 34822317 DOI: 10.1080/14767058.2021.2004585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Purpose: Meningioma is a benign tumor, more frequent in female population. During pregnancy, distinguishing a meningioma from other common conditions presenting with similar symptoms (headache, vomiting, visual impairment) is challenging. Moreover, the management must consider not only maternal but also fetal health. The rarity of the condition does not allow to define the features to which look in order to stratify the risk for the need of surgery during pregnancy. We reported three cases of meningioma in pregnant women treated at our department and reviewed those previously reported in the literature. The aim of this review is to evaluate which factors are more determinant in such management.Methods: Electronic databases were searched from year 2000 until June 2020, to identify clinical studies on management of meningioma diagnosed during pregnancy. The primary outcome was surgical timing. Secondary outcomes were delivery methods, maternal and neonatal outcomes.Results: Surgery after pregnancy is more frequently performed in PR + tumor (p-value 0.038) and with HA (p-value 0.0445), as well as in meningioma diagnosed during the third trimester, compared to those diagnosed before (p-value 0.0012). Surgery during pregnancy was more frequent in patients with visual loss (p-value 0.006). No significant differences were found in surgical management, according to age, WHO grade, tumor location, lesion diameter and ER positivity. Delivery method is independent from both hormonal receptor status and main symptoms, but women who had neurosurgery during pregnancy delivered more frequently with spontaneous vaginal delivery (p-value <0.01).Conclusion: The decision regarding surgical timing of meningioma diagnosed during pregnancy depends on PR + and impending symptoms as visual loss or headache. It seems that timing of neurosurgery does not affect the delivery method. A multidisciplinary approach is always useful to perform a rapid and appropriate diagnosis and to better evaluate pros and cons of surgery during pregnancy and following management both for maternal and fetal wellness.
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Affiliation(s)
- Luigi Carbone
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Teresa Somma
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Giuseppe Gabriele Iorio
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Francesca Vitulli
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Alessandro Conforti
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Antonio Raffone
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Ilaria Bove
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Serena Pagano
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Martina Pontillo
- Department of Public Health, School of Medicine, Federico II University, Naples, Italy
| | - Ilma Floriana Carbone
- Department of Woman, Child and Neonate, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Antonio Farina
- Obstetric Unit, Department of Medical and Surgical Sciences, University of Bologna and IRCCS Azienda Ospedaliero-Universitaria S.Orsola-Malpighi, Bologna, Italy
| | - Giuseppe Maria Maruotti
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Francesco Maiuri
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Paolo Cappabianca
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
| | - Carlo Alviggi
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, School of Medicine, Federico II University, Naples, Italy
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Perret C, Bertani R, Barbosa MM, Batista S, Koester SW, Maria PS, Schiavini H. Hemorrhage due to attempted excision of a frontal exophytic lesion: A cautionary tale. Surg Neurol Int 2021; 12:512. [PMID: 34754562 PMCID: PMC8571271 DOI: 10.25259/sni_601_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 09/08/2021] [Indexed: 11/27/2022] Open
Abstract
Background: Despite mainly benign, exophytic subcutaneous cranial masses present with a myriad of differential diagnosis possibilities, ranging from simple, superficial lesions to complex lesions involving the central nervous system. Although the gold standard imaging modality for the diagnosis of these lesions is magnetic resonance imaging, Doppler Ultrasonography can be a useful, inexpensive, and available tool for evaluation of lesions that could potentially be safely treated in the primary care setting, and lesions that would demand advanced neurosurgical care. Case Description: This patient presented with a complex exophytic plasmocytoma that was first diagnosed and erroneously approached as a subcutaneous lipoma with surgical resection in an outpatient surgical setting. This interpretive approach resulted in the failure of the procedure due to significant hemorrhage. The patient was immediately referred to neurosurgical care and transferred to our center. Admission doppler ultrasound imaging revealed absence of the frontal bone, the enriched and profuse vascularization, allowing further and proper diagnostic approach and treatment. Conclusion: Ultrasound could be a reliable, fast, and simple imaging method aiding practitioners to perform a better workup for patients with exophytic subcutaneous cranial masses.
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Affiliation(s)
- Caio Perret
- Department of Neurological Surgery, Hospital Municipal Miguel Couto, Rua Mario Ribeiro, Brazil
| | - Raphael Bertani
- Department of Neurological Surgery, Hospital Municipal Miguel Couto, Rua Mario Ribeiro, Brazil
| | - Mauricio Mendes Barbosa
- Department of Internal Medicine, School of Medicine, Federal University of Rio de Janeiro, R. Prof. Rodolpho Paulo Rocco, Rio de Janeiro, Brazil
| | - Savio Batista
- Department of Internal Medicine, School of Medicine, Federal University of Rio de Janeiro, R. Prof. Rodolpho Paulo Rocco, Rio de Janeiro, Brazil
| | - Stefan W Koester
- Department of Neurological Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee, United States
| | - Paulo Santa Maria
- Department of Neurological Surgery, Hospital Municipal Miguel Couto, Rua Mario Ribeiro, Brazil
| | - Hugo Schiavini
- Department of Neurological Surgery, Hospital Municipal Miguel Couto, Rua Mario Ribeiro, Brazil
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160
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Valente Aguiar P, Gonçalves M, Vaz R, Linhares P. A rare case of meningioma recurrence on a titanium mesh cranioplasty. Br J Neurosurg 2021:1-4. [PMID: 34726561 DOI: 10.1080/02688697.2021.1995592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 10/14/2021] [Indexed: 10/19/2022]
Abstract
Cranioplasty with titanium mesh provides a stable and cosmetically sound option for the correction of extensive skull bone defects following trauma or tumour surgery with osseous involvement. Meningiomas are for the most part benign lesions that are amenable to surgical cure, however lesions with extradural extension pose additional challenges not only due to increased technical difficulty in achieving gross total resection but also because of distinct biological behaviour. We describe the case of a 43-years-old woman that had been submitted to gross total resection of a WHO grade I falcine and superior sagittal sinus secretory meningioma with extradural and bone extension and cranioplasty with a titanium mesh who had a recurrence 4 years later as two tumour masses on top of the titanium mesh with no adjacent soft tissue invasion, and without dural involvement. To our knowledge, this is the first reported case of meningioma growth on top of titanium cranioplasty material. Seeded or incompletely removed tumoral cells might have exploited the biocompatibility of titanium to promote tumour regrowth.
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Affiliation(s)
- Pedro Valente Aguiar
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Manuel Gonçalves
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Rui Vaz
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
- Neurosciences Centre, Hospital CUF, Porto, Portugal
| | - Paulo Linhares
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
- Neurosciences Centre, Hospital CUF, Porto, Portugal
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Affiliation(s)
- Masaki Terabe
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jing Wu
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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DAĞLI H, GÜLBAHAR Ö. Menenjiomlarda miRNA’lar Biyobelirteç Olarak Kullanılabilir Mi? KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNIVERSITESI TIP FAKÜLTESI DERGISI 2021. [DOI: 10.17517/ksutfd.1004412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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163
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Mitochondrial DNA sequence variation and risk of meningioma. J Neurooncol 2021; 155:319-324. [PMID: 34669147 DOI: 10.1007/s11060-021-03878-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/13/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Risk factors for meningioma include female gender, African American race, high body mass index (BMI), and exposure to ionizing radiation. Although genome-wide association studies (GWAS) have identified two nuclear genome risk loci for meningioma (rs12770228 and rs2686876), the relation between mitochondrial DNA (mtDNA) sequence variants and meningioma is unknown. METHODS We examined the association of 42 common germline mtDNA variants (minor allele frequency ≥ 5%), haplogroups, and genes with meningioma in 1080 controls and 478 meningioma cases from a case-control study conducted at medical centers in the southeastern United States. Associations were examined separately for meningioma overall and by WHO grade (n = 409 grade I and n = 69 grade II/III). RESULTS Overall, meningioma was significantly associated with being female (OR 2.85; 95% CI 2.21-3.69), self-reported African American race (OR 2.38, 95% CI 1.41-3.99), and being overweight (OR 1.48; 95% CI 1.11-1.97) or obese (OR 1.70; 95% CI 1.25-2.31). The variant m.16362T > C (rs62581341) in the mitochondrial control region was positively associated with grade II/III meningiomas (OR 2.33; 95% CI 1.14-4.77), but not grade I tumors (OR 0.99; 95% CI 0.64-1.53). Haplogroup L, a marker for African ancestry, was associated with meningioma overall (OR 2.92; 95% CI 1.01-8.44). However, after stratifying by self-reported race, this association was only apparent among the few self-reported Caucasians with this haplogroup (OR 6.35; 95% CI 1.56-25.9). No other mtDNA variant, haplogroup, or gene was associated with meningioma. CONCLUSION Common mtDNA variants and major mtDNA haplogroups do not appear to have associations with the odds of developing meningioma.
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Konnakkaparambil Ramakrishnan K, Mohan L, Jacob JJ, Gopinath R. Right frontal meningioma presenting as delusional parasitosis. BMJ Case Rep 2021; 14:e245249. [PMID: 34667042 PMCID: PMC8527157 DOI: 10.1136/bcr-2021-245249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2021] [Indexed: 11/04/2022] Open
Abstract
Central nervous system tumours can occasionally present with psychiatric symptoms as the only manifestation and can often pose diagnostic challenges. A man in his early 60s presented to the psychiatry outpatient department with delusional parasitosis. His old age and an episode of urinary and faecal incontinence made the clinician consider neuroimaging at the very first visit itself. He was detected to have a right frontal meningioma with features of intracranial hypertension with midline shift, and he underwent emergency surgery. His delusional symptoms completely resolved after surgery and did not recur during the follow-up period of 2.5 years. A right frontal meningioma presenting as delusional parasitosis has probably not been reported in the literature before, and the case is being reported to highlight the rarity of its presentation, the importance of eliciting a detailed clinical history and the need for early neuroimaging in these cases.
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Affiliation(s)
| | - Lavanya Mohan
- Department of Psychiatry, Government Medical College Ernakulam, Cochin, Kerala, India
| | - Jwala Jasha Jacob
- Department of Psychiatry, Government Medical College Ernakulam, Cochin, Kerala, India
| | - Roopasree Gopinath
- Department of Psychiatry, Government General Hospital, Pathanamthitta, Kerala, India
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Ho UC, Chang K, Lin YH, Huang YC, Tsuang FY. Primary intraosseous meningioma of the vertebra: illustrative case. JOURNAL OF NEUROSURGERY: CASE LESSONS 2021; 2:CASE21362. [PMID: 35855279 PMCID: PMC9281493 DOI: 10.3171/case21362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/02/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Primary intraosseous meningiomas (PIMs) are rare, and PIMs of the vertebrae have not yet been reported. The authors report a case of primary meningioma arising from the vertebrae. OBSERVATIONS A 49-year-old man presented with lower back pain and numbness in both lower extremities. Lumbar spine magnetic resonance imaging revealed an L2 pathological fracture with epidural and paraspinal invasion. The patient had undergone a first palliative decompression and fixation surgery, and the diagnosis turned out to be a World Health Organization grade III anaplastic meningioma based on histopathology. The tumor had progressed after first operation and radiation therapy, and the patient was referred to the authors’ institute for excision. The patient had an uneventful postoperative course after a revisional total en bloc spondylectomy of L2. LESSONS The authors present a rare case of PIM of the vertebrae with epidural and paraspinal invasion. Careful preoperative assessment and surgical planning is crucial for successful patient management.
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Affiliation(s)
- Ue-Cheung Ho
- Division of Neurosurgery, Department of Surgery, and
| | | | - Yen-Heng Lin
- Medical Imaging, National Taiwan University Hospital, Taipei City, Taiwan
| | - Yu-Cheng Huang
- Medical Imaging, National Taiwan University Hospital, Taipei City, Taiwan
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Nguyen BQ, Tran DDT, Dang TC, Mai TD, Pham HD, Truong VT. Cervical intra-extradural meningioma with en-plaque, dumbbell-shaped, and an unusual calcified pattern in a young patient. Surg Neurol Int 2021; 12:454. [PMID: 34621569 PMCID: PMC8492428 DOI: 10.25259/sni_615_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/23/2021] [Indexed: 11/21/2022] Open
Abstract
Background: Most spinal meningiomas primarily grow in the intradural extramedullary location. Epidural meningiomas are uncommon; if detected, they usually coexist with intradural lesions. They inhere more aggressive and invasive characteristics compared with their counterparts inside the dura. Case Description: We report a 22-year-old female who was admitted to the hospital with weakness and numbness in both lower limbs. Her cervical magnetic resonance imaging revealed an en-plaque and dumbbell-shaped lesion located from C5 to C8. After gadolinium injection, the whole mass was enhanced and unveiled two portions: intradural and extradural. The bone window of the computed tomography scan revealed calcification inside the lesion. The patient underwent tumor removal surgery. The pathology findings showed a psammomatous meningioma. After 6 months of surgery, the patient has been able to walk with walkers. Conclusion: We should consider spinal meningioma as a differential diagnosis when encountering an extradural lesion in the cervical region. The optimal surgical treatment for young patient with epidural meningiomas is radical surgery with dura attachment removal.
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Affiliation(s)
- Bao Quoc Nguyen
- Department of Neurosurgery, Hue University Hospital, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Duc Duy Tri Tran
- Department of Neurosurgery, Hue University Hospital, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Thuan Cong Dang
- Department of Histology, Embryology, Pathology and Forensic Medicine, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Thi Dang Mai
- Department of Neurosurgery, Hue University Hospital, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Hai Duong Pham
- Department of Neurosurgery, Hue University Hospital, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Van Tri Truong
- Department of Neurosurgery, Hue University Hospital, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
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Maggio I, Franceschi E, Di Nunno V, Gatto L, Tosoni A, Angelini D, Bartolini S, Lodi R, Brandes AA. Discovering the Molecular Landscape of Meningioma: The Struggle to Find New Therapeutic Targets. Diagnostics (Basel) 2021; 11:1852. [PMID: 34679551 PMCID: PMC8534341 DOI: 10.3390/diagnostics11101852] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/27/2021] [Accepted: 10/04/2021] [Indexed: 02/06/2023] Open
Abstract
Meningiomas are the most common primary CNS tumors. They are usually benign but can present aggressive behavior in about 20% of cases. The genetic landscape of meningioma is characterized by the presence (in about 60% of cases) or absence of NF2 mutation. Low-grade meningiomas can also present other genetic alterations, particularly affecting SMO, TRAF7, KLF4 AKT1 and PI3KCA. In higher grade meningiomas, mutations of TERT promoter and deletion of CDKN2A/B seem to have a prognostic value. Furthermore, other genetic alterations have been identified, such as BAP1, DMD and PBRM1. Different subgroups of DNA methylation appear to be correlated with prognosis. In this review, we explored the genetic landscape of meningiomas and the possible therapeutic implications.
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Affiliation(s)
- Ilaria Maggio
- Medical Oncology Department, Azienda USL, Via Altura n. 3, 40139 Bologna, Italy; (I.M.); (V.D.N.); (L.G.)
| | - Enrico Franceschi
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
| | - Vincenzo Di Nunno
- Medical Oncology Department, Azienda USL, Via Altura n. 3, 40139 Bologna, Italy; (I.M.); (V.D.N.); (L.G.)
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
| | - Lidia Gatto
- Medical Oncology Department, Azienda USL, Via Altura n. 3, 40139 Bologna, Italy; (I.M.); (V.D.N.); (L.G.)
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
| | - Alicia Tosoni
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
| | - Daniele Angelini
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
| | - Stefania Bartolini
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
| | - Raffaele Lodi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, 40139 Bologna, Italy; or
| | - Alba Ariela Brandes
- Nervous System Medical Oncology Department, IRCSS Istituto di Scienze Neurologiche di Bologna, 40139 Bologna, Italy; (A.T.); (D.A.); (S.B.); (A.A.B.)
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Jenkins FS, Vasella F, Padevit L, Mutschler V, Akeret K, Velz J, Regli L, Sarnthein J, Neidert MC. Preoperative risk factors associated with new focal neurological deficit and other major adverse events in first-time intracranial meningioma neurosurgery. Acta Neurochir (Wien) 2021; 163:2871-2879. [PMID: 34259901 PMCID: PMC8437836 DOI: 10.1007/s00701-021-04897-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 05/26/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Neurosurgical resection is the mainstay of meningioma treatment. Adverse event (AE) rates of meningioma resections are significant, but preoperative risk factors for major AEs in patients undergoing first-time meningioma surgery are largely unknown. The aim of this study was to explore major AEs and identify preoperative risk factors in patients undergoing first-time meningioma surgery. METHODS Data on all meningioma resections performed at the University Hospital Zurich from 1 January 2013 to 31 December 2018 were collected in a prospective registry. All AEs that occurred within 3 months of surgery were documented in detail and classified as "minor" or "major." Statistical analysis included initial individual bivariate analyses of all preoperative factors and the occurrence of major AEs. Statistically significant variables were then included in a logistic regression model to identify predictors. RESULTS Three hundred forty-five patients were included in the study. Mean age was 58.1 years, and 77.1% of patients were female. The overall major AE rate was 20.6%; the most common of which was a new focal neurological deficit (12.8% of patients). Six preoperative factors showed a significant association with the occurrence of major AEs in bivariate analysis. All variables included in the logistic regression model showed increased odds of occurrence of major AE, but only tumor complexity as measured by the Milan Complexity Scale was a statistically significant predictor, with a score of 4 or more having twice the odds of major AEs (OR: 2.00, 95% CI: 1.15-3.48). CONCLUSION High tumor complexity is an independent predictor of the occurrence of major AEs following meningioma resection. Preoperative assessment of tumor complexity using the Milan Complexity Scale is warranted and can aid communication with patients about AE rates and surgical decision-making.
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Cazzato G, Internò V, Cimmino A, Messina R, Tucci M, Lettini T, Resta L, Ingravallo G. Papillary Meningioma: Case Presentation with Emphasis on Surgical and Medical Therapy of a Rare Variant of Meningioma. Diseases 2021; 9:diseases9030063. [PMID: 34562970 PMCID: PMC8482187 DOI: 10.3390/diseases9030063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 02/05/2023] Open
Abstract
Meningioma is one of the most frequent neoplasms of all in the central nervous system. Different variants are known, and of these some have peculiar characteristics, both from a morphological point of view and from a biological point of view. Here, we present a rare case of relapsed papillary meningioma in a young patient, focusing on histological characteristics, medical-surgical therapy and focusing on the risk of progression and/or recurrence of the lesion if not completely eradicated. Finally, we provide detailed molecular characteristics of the case in question.
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Affiliation(s)
- Gerardo Cazzato
- Section of Pathology, Department of Emergency and Organ Transplantation (DETO), University of Bari Aldo Moro, 70124 Bari, Italy; (A.C.); (T.L.); (L.R.)
- Correspondence: (G.C.); (G.I.); Tel.: +39-340-5203641 (G.C.)
| | - Valeria Internò
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, 70124 Bari, Italy; (V.I.); (M.T.)
| | - Antonietta Cimmino
- Section of Pathology, Department of Emergency and Organ Transplantation (DETO), University of Bari Aldo Moro, 70124 Bari, Italy; (A.C.); (T.L.); (L.R.)
| | - Raffaella Messina
- Neurosurgery Unit, Department of Basic Medical Science, Neurosciences and Sense Organs, “Aldo Moro” University of Bari Medical School, 70124 Bari, Italy;
| | - Marco Tucci
- Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, 70124 Bari, Italy; (V.I.); (M.T.)
| | - Teresa Lettini
- Section of Pathology, Department of Emergency and Organ Transplantation (DETO), University of Bari Aldo Moro, 70124 Bari, Italy; (A.C.); (T.L.); (L.R.)
| | - Leonardo Resta
- Section of Pathology, Department of Emergency and Organ Transplantation (DETO), University of Bari Aldo Moro, 70124 Bari, Italy; (A.C.); (T.L.); (L.R.)
| | - Giuseppe Ingravallo
- Section of Pathology, Department of Emergency and Organ Transplantation (DETO), University of Bari Aldo Moro, 70124 Bari, Italy; (A.C.); (T.L.); (L.R.)
- Correspondence: (G.C.); (G.I.); Tel.: +39-340-5203641 (G.C.)
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Abreu PG, Pappamikail L, Pontinha C, Drago J, Lourenço JA, Romero C, Teles P, Correia JP. Case report: Rare convexity meningeal chondroma mimicking a meningioma. Surg Neurol Int 2021; 12:426. [PMID: 34513189 PMCID: PMC8422430 DOI: 10.25259/sni_558_2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/22/2021] [Indexed: 11/08/2022] Open
Abstract
Background: Intracranial chondromas account for 0.2–0.3% of all intracranial neoplastic lesions and less than a quarter arise in the convexity or falx. Despite its benign nature, exceedingly rare malignant transformations exist. The misdiagnosis with meningiomas is frequent and may be related with chondromas’ similar insidious clinical presentation and imaging features. Standalone surgery is advised and complete resection provides the definitive treatment. Case Description: A 44-year-old female presents with insidious headache, visual disturbances, and papilledema. The imaging studies were compatible with frontal parasagittal meningioma. Surgery revealed a meningeal based mass, mostly avascular and with a well-demarked surgical plane from the brain parenchyma. Complete resection with meningeal margins was achieved and the histopathologic examination revealed a chondroma. The patient symptoms subsided and no surgical complications existed. Conclusion: Intracranial convexity chondromas constitute a rare differential diagnosis for meningiomas. The present case reinforces the current scarce data and serves as reminder for clinicians diagnosing and treating intracranial tumors.
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Affiliation(s)
- Pedro Gonçalo Abreu
- Department of Neurosurgery, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Lia Pappamikail
- Department of Neurosurgery, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Carlos Pontinha
- Department of Anatomical Pathology, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
| | - José Drago
- Department of Radiology, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - José Artur Lourenço
- Department of Neurosurgery, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Clara Romero
- Department of Neurosurgery, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Pedro Teles
- Department of Neurosurgery, Centro Hospitalar Universitário do Algarve, Faro, Portugal
| | - Joaquim Pedro Correia
- Department of Neurosurgery, Centro Hospitalar Universitário do Algarve, Faro, Portugal
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Santana-González A, Pérez-Ramírez M, Ramírez-Reyes G, Sánchez-Rodríguez G, Ferman-Cano F, López-Aguilar E, Siordia-Reyes AG. Management experience of pediatric meningioma in a Mexican reference center. Ann Diagn Pathol 2021; 55:151811. [PMID: 34500134 DOI: 10.1016/j.anndiagpath.2021.151811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Determine the histopathological and clinical characteristics of patients diagnosed with meningiomas and to establish the frequency of these tumors in the pediatric population Mexican. Determine the NF1/2 frequency in meningioma pediatric. METHODS Samples from the histopathology file were reviewed, and from the complete clinical file the following patient data was reviewed: age, gender, diagnosis, diagnosis year, surgical resection, location, tumor size, symptoms, and family background. The frequency of NF1/2 in pediatric meningioma was reviewed in literature. RESULTS Forty-four de novo cases were collected from pediatric patients; 19 were female patients and 25 males. The most frequent histological subtype was transitional meningioma. Of all the cases, 75% had a supratentorial localization and 20% had an extramedullary intrarachidian localization. Some clinical manifestations included seizures, paresis, headache, and visual disturbances. CONCLUSION There is a low incidence of meningiomas in the pediatric population, more than 70% are Grade I, and they have supratentorial localization.
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Affiliation(s)
- Alejandro Santana-González
- Servicio de Patología Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico
| | - Monserrat Pérez-Ramírez
- Servicio de Patología Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico
| | - Griselda Ramírez-Reyes
- Servicio de Neurocirugía Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico
| | - Gerardo Sánchez-Rodríguez
- Servicio de Neurocirugía Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico
| | - Floribel Ferman-Cano
- Servicio de Patología Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico
| | - Enrique López-Aguilar
- Servicio de Oncología Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico
| | - Alicia Georgina Siordia-Reyes
- Servicio de Patología Pediátrica, Hospital de Pediatría "Dr. Silvestre Frenk Freud", Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Mexico.
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Peng S, Cheng Z, Guo Z. Diagnostic nomogram model for predicting preoperative pathological grade of meningioma. Transl Cancer Res 2021; 10:4057-4064. [PMID: 35116703 PMCID: PMC8799226 DOI: 10.21037/tcr-21-798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 07/16/2021] [Indexed: 11/22/2022]
Abstract
Background Meningioma is the most common primary tumor of the central nervous system. Preoperative diagnosis of high-grade meningioma is helpful for the selection of treatment options. The aim of our study is to establish a diagnostic nomogram model for preoperative prediction of the pathological grade of meningioma. Methods The predictive model was established from a cohort of 215 clinicopathologically confirmed meningioma between January 2012 and December 2017. Radiomic features were collected from preoperative magnetic resonance imaging (MRI) and computed tomography of patients with meningioma. The least absolute shrinkage and selection operator (LASSO) regression model was used for data dimension reduction and feature selection. Multivariate logistic regression was used to build a predictive model and presented as a nomogram. The performance of the nomogram was assessed with respect to its calibration, discrimination, and clinical usefulness. Internal validation was evaluated using bootstrapping validation. Results High-grade meningioma was observed in 47 patients (22%). The predictors included in the nomogram were tumor-brain interface, bone invasion, and tumor location. The final diagnostic model exhibited good calibration and discrimination with a C-index of 0.874 (95% confidence interval: 0.818–0.929) and a higher C-index of 0.868 in internal validation. Decision curve analysis (DCA) indicated that the nomogram is very useful in clinical practice. Conclusions This study provides a nomogram model with tumor-brain interface, bone invasion, and tumor location that can effectively predict the preoperative pathological grading of patients with meningioma and thus help clinicians provide more reasonable treatment strategies for meningioma patients.
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Affiliation(s)
- Shijun Peng
- Department of Neurosurgery, The Ninth People's Hospital Affiliated to Shanghai Jiao Tong University Medical College, Shanghai, China
| | - Zhihua Cheng
- Department of Neurosurgery, The Ninth People's Hospital Affiliated to Shanghai Jiao Tong University Medical College, Shanghai, China
| | - Zhilin Guo
- Department of Neurosurgery, The Ninth People's Hospital Affiliated to Shanghai Jiao Tong University Medical College, Shanghai, China
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Zhao LY, Jiang YN, Wang YB, Bai Y, Sun Y, Li YQ. Coexistent vestibular schwannoma and meningioma in a patient without neurofibromatosis: A case report and review of literature. World J Clin Cases 2021; 9:7251-7260. [PMID: 34540986 PMCID: PMC8409193 DOI: 10.12998/wjcc.v9.i24.7251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/02/2021] [Accepted: 06/15/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The simultaneous occurrence of schwannoma and meningioma in the absence of neurofibromatosis (NF) or a previous history of irradiation is exceedingly rare, as only 10 intracranial cases have been reported to date. Herein, we report a case of a coexistent cavernous sinus meningioma and ipsilateral vestibular schwannoma (VS) in a female patient without NF or a history of exposure to irradiation. CASE SUMMARY A 63-year-old woman presented with progressive left-side hearing loss and tinnitus over the previous year. In the past 6 mo, she developed facial numbness and intermittent headaches. Magnetic resonance imaging showed two lesions that were located on the left side of the cerebellopontine angle and parasellar region. Both lesions were totally resected via the left retrosigmoid approach. Histopathological examination revealed a VS and a meningioma. The patient did not have a family history or clinical or radiological signs of NF. CONCLUSION The coincident occurrence of VS and meningioma within close vicinity is very rare, and the pathogenesis is unclear. A careful whole-body examination needs to be conducted to exclude NF. Surgical treatment with the goal of total tumor resection is the best therapy. Additional studies are needed for a better understanding of the mechanisms that lead to the development of tumor growth in multiple locations.
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Affiliation(s)
- Li-Yan Zhao
- Department of Clinical Laboratory, Second Hospital of Jilin University, Changchun 130041, Jilin Province, China
| | - Yi-Ning Jiang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Yu-Bo Wang
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Yang Bai
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Ying Sun
- Department of Clinical Laboratory, Second Hospital of Jilin University, Changchun 130041, Jilin Province, China
| | - Yun-Qian Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
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174
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Meningioma-Brain Crosstalk: A Scoping Review. Cancers (Basel) 2021; 13:cancers13174267. [PMID: 34503077 PMCID: PMC8428351 DOI: 10.3390/cancers13174267] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/12/2022] Open
Abstract
Background: In recent years, it has become evident that the tumoral microenvironment (TME) plays a key role in the pathogenesis of various cancers. In meningiomas, however, the TME is poorly understood, and it is unknown if glia cells contribute to meningioma growth and behaviour. Objective: This scoping review investigates if the literature describes and substantiates tumour-brain crosstalk in meningiomas and summarises the current evidence regarding the role of the brain parenchyma in the pathogenesis of meningiomas. Methods: We identified studies through the electronic database PubMed. Articles describing glia cells and cytokines/chemokines in meningiomas were selected and reviewed. Results: Monocytes were detected as the most abundant infiltrating immune cells in meningiomas. Only brain-invasive meningiomas elicited a monocytic response at the tumour-brain interface. The expression of cytokines/chemokines in meningiomas has been studied to some extent, and some of them form autocrine loops in the tumour cells. Paracrine interactions between tumour cells and glia cells have not been explored. Conclusion: It is unknown to what extent meningiomas elicit an immune response in the brain parenchyma. We speculate that tumour-brain crosstalk might only be relevant in cases of invasive meningiomas that disrupt the pial-glial basement membrane.
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175
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Sharma M, Yangzes S, Singh SR, Dogra M. Bilateral Diffuse Uveal Melanocytic Proliferation in a Patient with Recurrent Frontal Lobe Meningioma. Ocul Immunol Inflamm 2021; 30:1172-1175. [PMID: 34424118 DOI: 10.1080/09273948.2020.1859550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Background: Bilateral diffuse uveal melanocytic proliferation (B-DUMP) is a paraneoplastic disorder that may be seen in patients with a known malignancy but more commonly is seen in those without any history of cancer. It leads to multiple uveal tumors with exudative retinal detachment along with thickening of the choroid and generally carries a poor prognosis. Its etio-pathogenesis is poorly understood but is said to involve factors secreted by the systemic malignancy that lead to proliferation of melanocytes in the uvea.Methods: We report the presentation and management of a female with history of treated frontal lobe meningioma who presented with neovascular glaucoma along with B-DUMP and was found to have recurrence of the meningioma on neuro-imaging.Conclusions: Central nervous system meningiomas can cause B-DUMP and management of the malignancy may lead to partial resolution of posterior segment manifestations of B-DUMP.
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Affiliation(s)
- Manu Sharma
- Health and Family Welfare Department, Civil Hospital Kangra, Kangra, India
| | - Sonam Yangzes
- Anterior segment and Cornea Service, Grewal Eye Institute, Chandigarh, India
| | - Simar Rajan Singh
- Advanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Mohit Dogra
- Advanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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176
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The Expression of miR-155-5p and Local Matrix Gla Protein in Meningiomas. REV ROMANA MED LAB 2021. [DOI: 10.2478/rrlm-2021-0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Meningiomas are classified by the World Health Organization (WHO) in three grades, based on morphological features. Independent of this grading, the presence of calcification in meningiomas influences their growth rate. The messenger RNA of matrix Gla protein (MGP), an extra-hepatic protein with different conformations involved in the homeostasis of ectopic calcification has been found in meningiomas and was shown to be regulated in breast cancer by miR-155-5p, a specific micro RNA. Therefore, we investigated the expression of miR-155-5p and its relationship with local MGP conformations in different grade meningiomas. According to the WHO classification, our 41 samples of meningiomas were stratified in groups WHO I and WHO II. Using real time polymerase chain reaction, we observed a higher miR-155-5p expression in group WHO I versus group WHO II [with a fold change (FC) of 3.83, p=0.027)]. Moreover, the expression of miR-155-5p was higher in calcified tumors compared to non-calcified tumors in all samples (FC=3.01, p=0.047) and in group WHO I (FC=3.65, p=0.048). Utilizing immunohistochemistry, we determined the concurrent presence of all MGP conformations in calcified meningiomas. This study was the first to establish higher miR-155-5p expression in grade WHO I and calcified meningiomas, which could improve molecular classification and targeted therapy and also the presence of all MGP conformations in calcified meningiomas, confirming the existence of an anti-calcification mechanism in meningiomas..
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177
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Unterberger A, Ng E, Pradhan A, Kondajji A, Kulinich D, Duong C, Yang I. Adjuvant radiotherapy for atypical meningiomas is associated with improved progression free survival. J Neurol Sci 2021; 428:117590. [PMID: 34358821 DOI: 10.1016/j.jns.2021.117590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/23/2021] [Accepted: 07/23/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE To assess the progression-free survival benefits of adjuvant radiotherapy (ART) following surgical resection compared to surgery alone in high-grade meningioma patients. METHODS We retrospectively identified 43 patients with atypical meningiomas, who underwent either radiotherapy post-surgical resection (Surgery+ART) or surgery alone (Surgery alone) at our institution between February 2007 to March 2019. GTR was achieved in 28 patients, and STR, in 11. Patient, meningioma, and treatment data were extracted from records and compared using Kaplan-Meier methodology, log-rank tests, and Cox proportional hazard models. Radiation complications were also evaluated. RESULTS Overall 32.6% (n = 14) of patients, 6 patients in the Surgery+ART group and 8 in the Surgery alone group, experienced recurrence. In the Surgery+ART group, the median PFS time was 46.5 months (CI: [35.8-50.6]), compared to 24.5 months (CI: [18.3-32.9]) in the Surgery alone group. 2-year PFS for Surgery+ART was 100% vs. 69.0% for Surgery alone, and the 5-year PFS rate was 70.6% and 39.2%, respectively (log-rank p-value = .004). CONCLUSIONS Our data revealed a significant PFS increase for those treated with adjuvant radiotherapy following surgery compared to surgery alone. Future prospective studies evaluating differing radiation modalities and dosages should be conducted.
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Affiliation(s)
- Ansley Unterberger
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA; David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Edwin Ng
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Anjali Pradhan
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA; David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Aditya Kondajji
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA; David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Daniel Kulinich
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA; David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Courtney Duong
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Isaac Yang
- Departments of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA; Radiation Oncology, Los Angeles (UCLA), Los Angeles, CA, USA; Head and Neck Surgery, Los Angeles (UCLA), Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, Los Angeles (UCLA), Los Angeles, CA, USA; Los Angeles Biomedical Research Institute, Los Angeles (UCLA), Los Angeles, CA, USA; Harbor-UCLA Medical Center, Los Angeles (UCLA), Los Angeles, CA, USA; David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA.
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178
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Tatman PD, Wroblewski TH, Fringuello AR, Scherer SR, Foreman WB, Damek DM, Lillehei K, Youssef AS, Jensen RL, Graner MW, Ormond DR. High-Throughput Mechanistic Screening of Epigenetic Compounds for the Potential Treatment of Meningiomas. J Clin Med 2021; 10:jcm10143150. [PMID: 34300316 PMCID: PMC8303324 DOI: 10.3390/jcm10143150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 12/23/2022] Open
Abstract
Background: Meningiomas are the most common primary central nervous system tumors. 20–30% of these tumors are considered high-grade and associated with poor prognosis and high recurrence rates. Despite the high occurrence of meningiomas, there are no FDA-approved compounds for the treatment of these tumors. Methods: In this study, we screened patient-cultured meningiomas with an epigenetic compound library to identify targetable mechanisms for the potential treatment of these tumors. Meningioma cell cultures were generated directly from surgically resected patient tumors and were cultured on a neural matrix. Cells were treated with a library of compounds meant to target epigenetic functions. Results: Although each tumor displayed a unique compound sensitivity profile, Panobinostat, LAQ824, and HC toxin were broadly effective across most tumors. These three compounds are broad-spectrum Histone Deacetylase (HDAC) inhibitors which target class I, IIa, and IIb HDACs. Panobinostat was identified as the most broadly effective compound, capable of significantly decreasing the average cell viability of the sample cohort, regardless of tumor grade, recurrence, radiation, and patient gender. Conclusions: These findings strongly suggest an important role of HDACs in meningioma biology and as a targetable mechanism. Additional validation studies are necessary to confirm these promising findings, as well to identify an ideal HDAC inhibitor candidate to develop for clinical use.
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Affiliation(s)
- Philip D. Tatman
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Medical Scientist Training Program, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
- Department of Pharmacology, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
| | - Tadeusz H. Wroblewski
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Department of Neurology, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
| | - Anthony R. Fringuello
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
| | - Samuel R. Scherer
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Department of Neurology, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
| | - William B. Foreman
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Department of Neurology, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
| | - Denise M. Damek
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Department of Neurology, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA
| | - Kevin Lillehei
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
| | - A. Samy Youssef
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
| | - Randy L. Jensen
- Department of Neurosurgery, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA;
| | - Michael W. Graner
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Correspondence: (M.W.G.); (D.R.O.)
| | - D. Ryan Ormond
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, CO 80045, USA; (P.D.T.); (T.H.W.); (A.R.F.); (S.R.S.); (W.B.F.); (D.M.D.); (K.L.); (A.S.Y.)
- Correspondence: (M.W.G.); (D.R.O.)
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179
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Simonetti G, Silvani A, Tramacere I, Farinotti M, Legnani F, Pinzi V, Pollo B, Erbetta A, Gaviani P. Long term follow up in 183 high grade meningioma: A single institutional experience. Clin Neurol Neurosurg 2021; 207:106808. [PMID: 34293659 DOI: 10.1016/j.clineuro.2021.106808] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/24/2021] [Accepted: 07/03/2021] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Meningiomas are usually considered benign lesions, however a proportion of them shows a more aggressive behavior, defined high-grade meningiomas (HGM). Effective medical treatments are lacking, especially at the time of recurrence. METHODS Through a retrospective analysis, we examined epidemiological, diagnostic, therapeutic, recurrence information and survival data of HGM treated at our institution between 2010 and 2018. RESULTS 183 patients (105 females and 78 males), with median age of 58 years (25-88), were included; 168 were atypical, 12 anaplastic, 3 rhabdoid. Overall, m-PFS was 4.2 years, and m-OS was 10.3 years. Gross-total resection had a 5-year survival rate of 95% compared with subtotal/partial resection (86% and 67%) (p = 0.002). Higher expression of Ki-67/MIB-1 seems associated with higher risk of death (HR:1.06 with 95% CI, 1.00-1.12, p = 0.03). No statistically significant differences were seen in survival between the group managed with a wait-and-see strategy vs the group treated with RT while a difference on PFS was seen (4.1 years vs 5.2 years p = 0.03). After second recurrence, the most employed treatments were systemic therapies with a very limited effect on disease control. CONCLUSIONS Data confirmed the aggressive behavior of HGM. The extent of resection seems to correlate with a favorable outcome regardless histological subtypes. The role of RT remains controversial, with no statistically significant impact on OS but a possible role on PFS. Recurrent HGM remains the real challenge, to date no chemotherapies are able to achieve disease control. Future research should focus on biological/molecular predictors in order to achieve a patient-tailored treatment.
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Affiliation(s)
- G Simonetti
- Neuro-oncology Unit, Department of Clinical Neurosciences, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria, 11, 20133 Milan, Italy.
| | - A Silvani
- Neuro-oncology Unit, Department of Clinical Neurosciences, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria, 11, 20133 Milan, Italy
| | - I Tramacere
- Department of Research and Clinical Development, Scientific Directorate, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria, 11, 20133 Milan, Italy
| | - M Farinotti
- Unit of Neuroepidemiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - F Legnani
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, Università degli Studi, Milan, Italy
| | - V Pinzi
- Department of Neurosurgery, Radiotherapy Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - B Pollo
- Unit of Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - A Erbetta
- Department of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - P Gaviani
- Neuro-oncology Unit, Department of Clinical Neurosciences, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria, 11, 20133 Milan, Italy
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180
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Abstract
Background. Meningiomas are the most common primary intracranial tumor in adults. Although frequently histologically benign, the clinical severity of a lesion may range from being asymptomatic to causing severe impairment of global function and well-being. The diversity of intracranial locations and clinical phenotypes poses a challenge when studying functional impairments, however, more recent attention to patient-reported outcomes and health-related quality of life (HRQOL) have helped to improve our understanding of how meningioma may impact a patient’s life.Methods. Treatment strategies such as observation, surgery, radiation, or a combination thereof have been examined to ascertain their contributions to symptoms, physical and cognitive functioning, disability, and general aspects of daily functioning.Results. This review explores the multidimensional nature of HRQOL and how patients may be influenced by meningiomas and their treatment.Conclusion. Overall, treatment of symptomatic meningiomas is associated with improved HRQOL, cognitive functioning, and seizure control while tumor size, location, histologic grade, and epileptic burden are associated with worse HRQOL.
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Affiliation(s)
- Sameah Haider
- Department of Neurosurgery, Hermelin Brain Tumor Center, Henry Ford Health System, Detroit, Michigan, USA
| | - Martin J B Taphoorn
- Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Neurology, Haaglanden Medical Center, The Hague, The Netherlands
| | - Katharine J Drummond
- Department of Neurosurgery, Royal Melbourne Hospital, Parkville, Victoria, Australia.,Department of Surgery, University of Melbourne, Parkville, Victoria, Australia
| | - Tobias Walbert
- Department of Neurosurgery, Hermelin Brain Tumor Center, Henry Ford Health System, Detroit, Michigan, USA
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181
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Biological Treatments of Neurofibromatosis Type 2 and Other Skull Base Disorders. Otolaryngol Clin North Am 2021; 54:789-801. [PMID: 34120747 DOI: 10.1016/j.otc.2021.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Studies of genomic alterations that occur in skull base tumors have provided information regarding biological aberrations that are necessary for the growth and maintenance of these tumors. This has led to the development and initiation of clinical trials incorporating biological treatments for many skull base tumors. The exciting developments of molecularly targeted therapy for the treatment of skull base tumors may provide noninvasive therapeutic options for patients that can be used either alone or in combination with surgery and/or radiation therapy. Future analysis and continued scientific discovery of treatments for skull base tumors can lead to improved outcomes in patients.
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182
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Maggio I, Franceschi E, Tosoni A, Nunno VD, Gatto L, Lodi R, Brandes AA. Meningioma: not always a benign tumor. A review of advances in the treatment of meningiomas. CNS Oncol 2021; 10:CNS72. [PMID: 34015955 PMCID: PMC8162186 DOI: 10.2217/cns-2021-0003] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/30/2021] [Indexed: 11/21/2022] Open
Abstract
Meningiomas are the most common primary intracranial tumors. The majority of meningiomas are benign, but they can present different grades of dedifferentiation from grade I to grade III (anaplastic/malignant) that are associated with different outcomes. Radiological surveillance is a valid option for low-grade asymptomatic meningiomas. In other cases, the treatment is usually surgical, aimed at achieving a complete resection. The use of adjuvant radiotherapy is the gold standard for grade III, is debated for grade II and is not generally indicated for radically resected grade I meningiomas. The use of systemic treatments is not standardized. Here we report a review of the literature on the clinical, radiological and molecular characteristics of meningiomas, available treatment strategies and ongoing clinical trials.
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Affiliation(s)
- Ilaria Maggio
- Medical Oncology Department, Azienda USL, Via Altura 3, 40139, Bologna, Italy
| | - Enrico Franceschi
- Medical Oncology Department, Azienda USL, Via Altura 3, 40139, Bologna, Italy
| | - Alicia Tosoni
- Medical Oncology Department, Azienda USL, Via Altura 3, 40139, Bologna, Italy
| | - Vincenzo Di Nunno
- Medical Oncology Department, Azienda USL, Via Altura 3, 40139, Bologna, Italy
| | - Lidia Gatto
- Medical Oncology Department, Azienda USL, Via Altura 3, 40139, Bologna, Italy
| | - Raffaele Lodi
- IRCSS Istituto di Scienze Neurologiche di Bologna, Bologna 40139, Italy
| | - Alba A Brandes
- Medical Oncology Department, Azienda USL, Via Altura 3, 40139, Bologna, Italy
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183
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Fiani B, Jarrah R, Griepp DW, Adukuzhiyil J. The Role of 3D Exoscope Systems in Neurosurgery: An Optical Innovation. Cureus 2021; 13:e15878. [PMID: 34327102 PMCID: PMC8302823 DOI: 10.7759/cureus.15878] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 06/23/2021] [Indexed: 12/20/2022] Open
Abstract
The development of the three-dimensional (3D) exoscope is a marvel of technological innovation in modern surgical practice. While its predecessor, the operating microscope (OM), has long been the gold-standard surgical visualization modality, its particular limitations in terms of accessibility and ergonomic demand have led to the development of a more sophisticated, 3D model. Specifically, the 3D exoscope allows for an enhanced image quality of the surgical field, while also being more ergonomically favorable. Moreover, this device's ability to handle delicate microsensitve procedures, along with its alleviation of surgeon fatigue, indicates great potential for neurosurgical application. For this narrative review, the authors queried PubMed database using the keyword "exoscope" to identify relevant studies involving the specialty of neurosurgery that were published in English language full text. The search yielded full-text English language-related articles regarding neurosurgical exoscope, its applications and limitations. The 3D exoscope uniquely allows for enhanced surgeon comfort and superior imaging of the patient's real-time anatomy. However, the OM was described to having a slight image favorability with fusion and decompression surgery. Cost analysis is highlighted for its potential disparity. 3D exoscopes will potentially be incorporated with intelligent carriers and robotic surgical systems. Ultimately, with further studies highlighting its use, the 3D exoscope is expected to continue to imprint its status as one of the most efficient technological visualization tools in the future of neurosurgical practice.
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Affiliation(s)
- Brian Fiani
- Neurosurgery, Desert Regional Medical Center, Palm Springs, USA
| | - Ryan Jarrah
- Neurosurgery, College of Arts and Sciences, University of Michigan - Flint, Flint, USA
| | - Daniel W Griepp
- Neurosurgery, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, USA
| | - Jessica Adukuzhiyil
- Medicine, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, USA
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184
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Abstract
Objective Giant intracranial meningiomas are a challenge for neurosurgeons because of their size and location in the cranium. Difficult tumor dissection and encasement of important neurovascular structures make them a horrible nightmare. The aims of this study are to present our giant intracranial meningioma series and to compare our experience using advanced surgical technology with the current literature. Materials and Methods The data of patients with the diagnosis of giant intracranial meningioma between 2014 and 2020 who underwent surgical treatment were retrospectively reviewed. The demographic, radiological, and surgical characteristics of patients were documented. The size and location of tumors as well as surgical technique were analyzed in detail. Results A total of 61 patients with intracranial meningioma underwent surgical treatment over a 7-year period, and 10 (16.4%) tumors were larger than 5 cm in diameter, which were classified as giant meningioma. Seven patients were male and 3 were female, with a mean age of 64.9 years. Four tumors were located at the skull base. Histological diagnosis was meningioma World Health Organization grade I in 7 patients and grade II in 3 patients. Simpson grade 1 resection was achieved in 6 patients and grade 2 resection in 4 patients. No mortality was observed. Conclusion Careful surgical planning should be made for giant intracranial meningiomas. Their location, adjacent neurovascular structures, and vascular supply affect the resection level of these giant tumors. Simpson grade 1 resection is seldom possible for skull base meningiomas.
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Affiliation(s)
- Soner Yaşar
- Department of Neurosurgery, University of Health Sciences, Gülhane Education and Research Hospital, Ankara, Turkey
| | - Alparslan Kırık
- Department of Neurosurgery, University of Health Sciences, Gülhane Education and Research Hospital, Ankara, Turkey
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Spinal Clear Cell Meningioma: Atypical Clinical and Radiological Manifestations. Case Rep Surg 2021; 2021:9998399. [PMID: 34136303 PMCID: PMC8175162 DOI: 10.1155/2021/9998399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/03/2021] [Indexed: 11/18/2022] Open
Abstract
Meningioma has many subtypes with clear cell meningioma being more aggressive than other variants of meningioma and one of the rarest. We report a case of spinal clear cell meningioma that occurred in a 25-year-old lady who presented with the inability to be in the supine position. A magnetic resonance image showed an intradural mass extending from L1 to L4. Near complete excision was done. The patient had motor weakness postoperatively which improved gradually. A histopathological study showed a clear cell meningioma. In a differential diagnosis of any space-occupying lesion of the spine, clear cell meningioma should be considered though it is a rare form of meningioma due to its potential to recure. An accurate follow-up is warranted.
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186
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Characterization of Hevin (SPARCL1) Immunoreactivity in Postmortem Human Brain Homogenates. Neuroscience 2021; 467:91-109. [PMID: 34033869 DOI: 10.1016/j.neuroscience.2021.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 11/22/2022]
Abstract
Hevin is a matricellular glycoprotein that plays important roles in neural developmental processes such as neuronal migration, synaptogenesis and synaptic plasticity. In contrast to other matricellular proteins whose expression decreases when development is complete, hevin remains highly expressed, suggesting its involvement in adult brain function. In vitro studies have shown that hevin can have different post-translational modifications. However, the glycosylation pattern of hevin in the human brain remains unknown, as well as its relative distribution and localization. The present study provides the first thorough characterization of hevin protein expression by Western blot in postmortem adult human brain. Our results demonstrated two major specific immunoreactive bands for hevin: an intense band migrating around 130 kDa, and a band migrating around 100 kDa. Biochemical assays revealed that both hevin bands have a different glycosylation pattern. Subcellular fractionation showed greater expression in membrane-enriched fraction than in cytosolic preparation, and a higher expression in prefrontal cortex (PFC) compared to hippocampus (HIP), caudate nucleus (CAU) and cerebellum (CB). We confirmed that a disintegrin and metalloproteinase with thrombospondin motifs 4 (ADAMTS4) and matrixmetalloproteinase 3 (MMP-3) proteases digestion led to an intense double band with similar molecular weight to that described as SPARC-like fragment (SLF). Finally, hevin immunoreactivity was also detected in human astrocytoma, meningioma, cerebrospinal fluid and serum samples, but was absent from any blood cell type.
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187
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Meningiomas: A review of general, histopathological, clinical and molecular characteristics. Pathol Res Pract 2021; 223:153476. [PMID: 33991850 DOI: 10.1016/j.prp.2021.153476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVES In this review, the main histological and molecular characteristics of meningiomas will be addressed, as well as the aspects most related to clinical conditions, treatment, and survival of patients, enabling a better understanding of these tumors behavior. METHODS This study was conducted with the search for published studies available on NCBI, PubMed, MEDLINE, Scielo and Google Scholar. Relevant documents have been identified and 50 articles were selected. RESULTS The main points about meningiomas were characterized, as well as the histological presence of spontaneous necrosis in grade I and brain invasion as diagnostic criteria, their molecular origin related to deletion of chromosome 22 and mutations in theNF2 and TERT genes, in addition to their clinical characteristics. The preferential treatment remains the total resection of the tumor. CONCLUSION The information about meningiomas is well known and necessary, but it is expected that more work will emerge related to the behavior of these tumors, and that the scientific community will obtain more clarity about the best ways to conduct the patients treatment.
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188
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Corona AM, Di L, Shah AH, Crespo R, Eichberg DG, Lu VM, Luther EM, Komotar RJ, Ivan ME. Current experimental therapies for atypical and malignant meningiomas. J Neurooncol 2021; 153:203-210. [PMID: 33950341 DOI: 10.1007/s11060-021-03759-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/13/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Atypical (WHO grade II) and malignant meningiomas (WHO Grade III) are a rare subset of primary intracranial tumors. Given their relatively high recurrence rate after surgical resection and radiotherapy, there has been a recent push to explore other adjuvant treatment options for these treatment-refractory tumors. Recent advances in molecular sequencing of tumors have elucidated new pathways and drug targets which are currently being studied. This article provides a thorough overview of novel investigational therapeutics including targeted therapy, immunotherapy, and new technological modalities for atypical and malignant meningiomas. METHODS We performed a comprehensive review of the available literature regarding preclinical and clinical evidence for emerging treatments for high grade meningiomas from 1980 to 2020 including contemporaneous clinical trials. RESULTS There is encouraging preclinical evidence regarding the efficacy of the emerging treatments discussed in this article. Several clinical trials are currently recruiting patients to translate targeted molecular therapy for meningiomas. Several clinical studies have suggested a clinical benefit of combinatorial treatment for these treatment-refractory tumors. CONCLUSION With numerous active clinical trials for high grade meningiomas, a meaningful improvement in the outcomes for these tumors may be on the horizon.
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Affiliation(s)
- Andres M Corona
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA.
| | - Long Di
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Raphael Crespo
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Victor M Lu
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Evan M Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, 1475 NW 12th Avenue, Miami, FL, 33136, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, 1095 NW 14th Terrace, Miami, FL, 33136, USA.,Sylvester Comprehensive Cancer Center, 1475 NW 12th Avenue, Miami, FL, 33136, USA
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189
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Kim SW, Ryu J, Na K. Intraventricular meningioma admixed with choroid plexus papilloma: a rare case report with review of literature. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2021; 14:545-550. [PMID: 33936380 PMCID: PMC8085822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
A 42-year-old male presented with a history of headaches for the previous 2 weeks. Magnetic resonance imaging of the brain showed a 3 cm-sized well-defined, enhancing mass in the atrium of the right lateral ventricle. The tumor comprised two heterogeneous components: approximately one-third of the tumor exhibited complex and delicate papillary fibrovascular cores lined with uniform cuboidal-to-columnar epithelial cells, whereas the remaining part was seen as a solid sheet comprising ovoid-to-spindle cells with plump cytoplasm, which occasionally had a whorling pattern. Further, immunohistochemical staining with cytokeratin 7 (CK7) and epithelial membrane antigen (EMA) clearly demarcated each component: the CK7+/EMA- choroid plexus papilloma and CK7-/EMA+ meningioma. This report provides a description of an unusual case of concomitant choroid plexus papilloma and ventricular meningioma presenting as a single mass, along with a review of relevant literature.
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Affiliation(s)
- So-Woon Kim
- Department of Pathology, Kyung Hee University Hospital, College of Medicine, Kyung Hee UniversitySeoul, Republic of Korea
| | - Jiwook Ryu
- Department of Neurosurgery, Kyung Hee University Hospital, College of Medicine, Kyung Hee UniversitySeoul, Republic of Korea
| | - Kiyong Na
- Department of Pathology, Kyung Hee University Hospital, College of Medicine, Kyung Hee UniversitySeoul, Republic of Korea
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190
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Utility of multiparametric pre-operative magnetic resonance imaging in differentiation of chordoid meningioma from the other histopathological subtypes of meningioma-a retrospective study. Neuroradiology 2021; 64:253-264. [PMID: 33837805 DOI: 10.1007/s00234-021-02690-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To determine the magnetic resonance imaging (MRI) features which could pre-operatively differentiate chordoid meningioma (CM) from other histopathological subtypes of meningioma. METHODS Retrospective analysis of pre-operative MRI of cases with histopathologically confirmed diagnosis of meningioma during the last 5 years at our institute was done. T1W, T2W, FLAIR sequences, and post-contrast enhancement were evaluated on a qualitative scale. Normalized ADC ratios (nADCR) and normalized fractional anisotropy ratios (nFAR) were derived. The intratumoral susceptibility score (ITSS), presence of sunburst pattern of vasculature, bone changes, tumour-parenchyma interface, and oedema-to-tumour ratio were also determined. RESULTS A total of 81 lesions were analyzed out of which 15 were CM. CM showed a higher relative contrast enhancement as compared to all other subtypes except for angiomatous and microcystic meningioma. Relative signal intensity on FLAIR could differentiate CM from transitional meningioma. nFAR was found to be significantly higher in fibroblastic meningioma and significantly lower in microcystic meningiomas as compared to CM. Anaplastic meningiomas were remarkable for bone changes and an ill-defined tumour-brain interface in significantly higher proportion of cases as compared to CM. nADCR > 1.5 was found to be an independent predictor of CM with a sensitivity of 84.6%, specificity of 89.8%, positive predictive value of 64.7%, and negative predictive value of 96.4%. CONCLUSION Routine pre-operative MRI may be able to differentiate CM from other meningioma subtypes and a cut-off value of greater than 1.5 for nADCR could be predictive of > 50% chordoid histology of meningioma with a high sensitivity, specificity, and negative predictive value.
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191
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Bukovac A, Kafka A, Raguž M, Brlek P, Dragičević K, Müller D, Pećina-Šlaus N. Are We Benign? What Can Wnt Signaling Pathway and Epithelial to Mesenchymal Transition Tell Us about Intracranial Meningioma Progression. Cancers (Basel) 2021; 13:1633. [PMID: 33915799 PMCID: PMC8037732 DOI: 10.3390/cancers13071633] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/17/2021] [Accepted: 03/26/2021] [Indexed: 01/26/2023] Open
Abstract
Epithelial to mesenchymal transition (EMT), which is characterized by the reduced expression of E-cadherin and increased expression of N-cadherin, plays an important role in the tumor invasion and metastasis. Classical Wnt signaling pathway has a tight link with EMT and it has been shown that nuclear translocation of β-catenin can induce EMT. This research has showed that genes that are involved in cadherin switch, CDH1 and CDH2, play a role in meningioma progression. Increased N-cadherin expression in relation to E-cadherin was recorded. In meningioma, transcription factors SNAIL, SLUG, and TWIST1 demonstrated strong expression in relation to E- and N-cadherin. The expression of SNAIL and SLUG was significantly associated with higher grades (p = 0.001), indicating their role in meningioma progression. Higher grades also recorded an increased expression of total β-catenin followed by an increased expression of its active form (p = 0.000). This research brings the results of genetic and protein analyzes of important molecules that are involved in Wnt and EMT signaling pathways and reveals their role in intracranial meningioma. The results of this study offer guidelines and new markers of progression for future research and reveal new molecular targets of therapeutic interventions.
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Affiliation(s)
- Anja Bukovac
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
- Department of Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Anja Kafka
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
- Department of Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Marina Raguž
- Department of Neurosurgery, University hospital Dubrava, 10000 Zagreb, Croatia;
| | - Petar Brlek
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
| | - Katarina Dragičević
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
| | - Danko Müller
- Department of Pathology and Cytology, University Hospital Dubrava, 10000 Zagreb, Croatia;
| | - Nives Pećina-Šlaus
- Laboratory of Neurooncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia; (A.B.); (A.K.); (P.B.); (K.D.)
- Department of Biology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
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192
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Ekaireb RI, Edwards CS, Ali MS, Nguyen MP, Daggubati V, Aghi MK, Theodosopoulos PV, McDermott MW, Magill ST. Meningioma surgical outcomes and complications in patients aged 75 years and older. J Clin Neurosci 2021; 88:88-94. [PMID: 33992210 DOI: 10.1016/j.jocn.2021.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Meningioma incidence increases with age, yet limited data exist on how comorbidities impact complication rates in elderly patients undergoing meningioma resection. The objective of this study was to report surgical outcomes and identify risk factors for perioperative complications. METHODS We performed a retrospective study of patients 75 years and older undergoing meningioma resection. Outcomes included survival and complications. Major complications were those requiring surgical intervention or causing permanent neurological deficit. Recursive partitioning, Kaplan-Meier survival, univariate and multi-variate (MVA) analyses were performed. RESULTS From 1996 to 2014, 103 patients with a median age of 79 years (IQR 77-83 years) underwent cranial meningioma resection. Median follow-up was 5.8 years (IQR 1.7-8.7 years). Median actuarial survival was 10.5 years. Complications occurred in 32 patients (31.1%), and 13 patients (12.6%) had multiple complications. Major complications occurred in 16 patients (15.5%). Increasing age was not a significant predictor of any (p = 0.6408) or major complication (p = 0.8081). On univariate analysis, male sex, Charlson Comorbidity Index greater than 8, and cardiovascular comorbidities were significantly associated with major complications. On MVA only cardiovascular comorbidities (OR 3.94, 95% CI 1.05-14.76, p = 0.0238) were significantly associated with any complication. All patients with major complications had cardiovascular comorbidities, and on MVA male gender (OR 3.78, 95%CI 1.20-11.93, p = 0.0212) was associated with major complications. CONCLUSIONS Cardiovascular comorbidities and male gender are significant risk factors for complications after meningioma resection in patients aged 75 years and older. While there is morbidity associated with meningioma resection in this cohort, there is also excellent long-term survival.
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Affiliation(s)
- Rachel I Ekaireb
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Caleb S Edwards
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Muhammad S Ali
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Minh P Nguyen
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Vikas Daggubati
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Manish K Aghi
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Philip V Theodosopoulos
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Michael W McDermott
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA; Miami Neuroscience Institute, Baptist Health South Florida, Miami, FL 33176, USA
| | - Stephen T Magill
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94131, USA.
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Esmat HA, Naseri MW, Shirzai A. Meningioma with transcalvarial extension and malignant transformation presenting as a frontoparietal scalp swelling. INTERNATIONAL JOURNAL OF SURGERY OPEN 2021. [DOI: 10.1016/j.ijso.2021.100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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194
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Ogasawara C, Philbrick BD, Adamson DC. Meningioma: A Review of Epidemiology, Pathology, Diagnosis, Treatment, and Future Directions. Biomedicines 2021; 9:biomedicines9030319. [PMID: 33801089 PMCID: PMC8004084 DOI: 10.3390/biomedicines9030319] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 12/19/2022] Open
Abstract
Meningiomas are the most common intracranial tumor, making up more than a third of all primary central nervous system (CNS) tumors. They are mostly benign tumors that can be observed or preferentially treated with gross total resection that provides good outcomes. Meningiomas with complicated histology or in compromising locations has proved to be a challenge in treating and predicting prognostic outcomes. Advances in genomics and molecular characteristics of meningiomas have uncovered potential use for more accurate grading and prediction of prognosis and recurrence. With the study and detection of genomic aberrancies, specific biologic targets are now being trialed for possible management of meningiomas that are not responsive to standard surgery and radiotherapy treatment. This review summarizes current epidemiology, etiology, molecular characteristics, diagnosis, treatments, and current treatment trials.
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Affiliation(s)
- Christian Ogasawara
- Department of Surgery, University of Hawaii School of Medicine, Honolulu, HI 96813, USA;
| | - Brandon D. Philbrick
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA;
| | - D. Cory Adamson
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA 30322, USA;
- Department of Neurosurgery, Atlanta VA Medical Center, Atlanta, GA 30322, USA
- Correspondence: ; Tel.: +1-(919)-698-3152
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195
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Meningioma MRI radiomics and machine learning: systematic review, quality score assessment, and meta-analysis. Neuroradiology 2021; 63:1293-1304. [PMID: 33649882 PMCID: PMC8295153 DOI: 10.1007/s00234-021-02668-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/03/2021] [Indexed: 02/07/2023]
Abstract
Purpose To systematically review and evaluate the methodological quality of studies using radiomics for diagnostic and predictive purposes in patients with intracranial meningioma. To perform a meta-analysis of machine learning studies for the prediction of intracranial meningioma grading from pre-operative brain MRI. Methods Articles published from the year 2000 on radiomics and machine learning applications in brain imaging of meningioma patients were included. Their methodological quality was assessed by three readers with the radiomics quality score, using the intra-class correlation coefficient (ICC) to evaluate inter-reader reproducibility. A meta-analysis of machine learning studies for the preoperative evaluation of meningioma grading was performed and their risk of bias was assessed with the Quality Assessment of Diagnostic Accuracy Studies tool. Results In all, 23 studies were included in the systematic review, 8 of which were suitable for the meta-analysis. Total (possible range, −8 to 36) and percentage radiomics quality scores were respectively 6.96 ± 4.86 and 19 ± 13% with a moderate to good inter-reader reproducibility (ICC = 0.75, 95% confidence intervals, 95%CI = 0.54–0.88). The meta-analysis showed an overall AUC of 0.88 (95%CI = 0.84–0.93) with a standard error of 0.02. Conclusions Machine learning and radiomics have been proposed for multiple applications in the imaging of meningiomas, with promising results for preoperative lesion grading. However, future studies with adequate standardization and higher methodological quality are required prior to their introduction in clinical practice. Supplementary Information The online version contains supplementary material available at 10.1007/s00234-021-02668-0.
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196
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Clifton BA, Abraham A, Ray A. A Case of Persistent Frontal Swelling. JAMA Otolaryngol Head Neck Surg 2021; 146:857-858. [PMID: 32729922 DOI: 10.1001/jamaoto.2020.1610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
| | - Anu Abraham
- Department of Pathology, University of Mississippi Medical Center, Jackson
| | - Amrita Ray
- Department of Otolaryngology-Head and Neck Surgery, University of Mississippi Medical Center, Jackson
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197
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Zheng J, Chen W, Huang D, Wang Y, Zheng D, Zhou L, Brelén ME, Huang Z. Ocular symptoms as the initial clinical manifestations in patients with extraocular tumors. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:497. [PMID: 33850894 PMCID: PMC8039673 DOI: 10.21037/atm-21-830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Background Due to the variety of clinical presentation, some tumors may be concealed and easily misdiagnosed, leading to delays in management. We report a series of patients who initially presented to an Ophthalmic Clinic with ocular symptoms and were subsequently diagnosed with extraocular tumors. Methods Patients who presented to the ophthalmic outpatient clinic at the Joint Shantou International Eye Center with ocular symptoms between April 2013 and December 2019 and were subsequently diagnosed with intracranial or systemic tumors were reviewed retrospectively. Clinical data, including ocular symptoms and signs, ophthalmic and systemic imaging examinations, and the results of tumor biopsies were collected and analyzed. Results Twenty-three patients were included in this study, of which 16 were female (69.6%) and 7 were male (30.4%). Chief complaints at the first visit included visual loss (n=20), proptosis (n=2), and diplopia (n=1). Ocular examination revealed disc pallor (n=8) and swelling (n=3), choroidal mass with or without chorioretinal detachment (n=5), and proptosis (n=2). Visual field (VF) examination was performed in 11 patients of which hemianopia (n=4) and non-specific field loss (n=7) were noted. Brain CT or MRI, together with histopathological findings from surgical biopsies confirmed the diagnosis of the intracranial tumors in 18 cases, including pituitary adenoma (n=7), meningioma (n=2), oligodendroglioma (n=1), sellar tumor (n=1), suprachiasmatic arteriovenous aneurysm (n=1), orbital glioma (n=1), multiple intracranial tumors (n=1), and sphenoid ossifying fibroma (n=1). Nasopharyngeal carcinoma (NPC) (n=3) was diagnosed with brain MRI and nasal endoscopy. Five patients were confirmed as choroidal metastasis secondary to lung cancer (n=3), hepatoma (n=1), and breast cancer (n=1). Conclusions Patients with extraocular tumors may present initially to an ophthalmologist with ocular symptoms. It is important to identify and appropriately manage these patients to avoid unnecessary delays in future treatment.
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Affiliation(s)
- Jianlong Zheng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Weiqi Chen
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Dingguo Huang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Yifan Wang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Dezhi Zheng
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Lingling Zhou
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Marten E Brelén
- Department of Ophthalmology and Visual Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Zijing Huang
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
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Ponce-Ayala A, Carrizales-Rodríguez J, Ramírez-Loera C, Rocha-Abrica JM, Mendizábal-Guerra R. Anaplastic meningioma with intratumoral abscess; Case report and literature review. INTERDISCIPLINARY NEUROSURGERY 2021. [DOI: 10.1016/j.inat.2020.101007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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199
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Di L, Eichberg DG, Park YJ, Shah AH, Jamshidi AM, Luther EM, Lu VM, Komotar RJ, Ivan ME, Gultekin SH. Rapid Intraoperative Diagnosis of Meningiomas using Stimulated Raman Histology. World Neurosurg 2021; 150:e108-e116. [PMID: 33647485 DOI: 10.1016/j.wneu.2021.02.097] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Frozen section is a time- and labor-intensive method for intraoperative pathologic diagnosis. As a result, there exists a need to expedite and streamline the acquisition and interpretation of diagnostic histologic data to inform surgical decision making. Stimulated Raman histology (SRH) is an emerging technology that may serve to expedite the acquisition and interpretation of histologic data in the operating room. METHODS A blinded, prospective cohort study of 82 patients undergoing resection for tumors of the central nervous system was performed. Twenty-six patients with diagnoses of meningioma on SRH, frozen, or permanent section were included in this subanalysis. Diagnostic time and accuracy of stimulated SRH histology images were compared with the gold standard (frozen section). Agreement of SRH and frozen section diagnosis with permanent section (true) diagnosis was also compared. RESULTS Mean time-to-diagnosis was significantly shorter for SRH-mediated diagnosis compared with frozen section (9.2 vs. 35.8, P < 0.0001). Diagnostic accuracy was not significantly different between methods (P = 0.15). Diagnostic agreement was not significantly different between SRH versus frozen, SRH versus permanent, or frozen versus permanent section methods (P = 0.5, P = 0.5, P = 1.00). CONCLUSIONS SRH is a promising adjuvant technology that may expedite intraoperative neuropathologic consult without sacrificing diagnostic accuracy.
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Affiliation(s)
- Long Di
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA.
| | - Daniel G Eichberg
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA
| | - You Jeong Park
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ashish H Shah
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Aria M Jamshidi
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Evan M Luther
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Victor M Lu
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA; Sylvester Comprehensive Cancer Center, , Miami, Florida, USA
| | - Michael E Ivan
- Department of Neurological Surgery University of Miami Miller School of Medicine, Miami, Florida, USA; Sylvester Comprehensive Cancer Center, , Miami, Florida, USA
| | - Sakir H Gultekin
- Department of Pathology, University of Miami Miller School of Medicine, Miami, Florida, USA
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Unterberger A, Nguyen T, Duong C, Kondajji A, Kulinich D, Yang I. Meta-analysis of adjuvant radiotherapy for intracranial atypical and malignant meningiomas. J Neurooncol 2021; 152:205-216. [PMID: 33635510 DOI: 10.1007/s11060-020-03674-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/05/2020] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Meningiomas comprise 33% of all CNS tumors. The World Health Organization (WHO) describes meningiomas as benign (BM), atypical (AM), and malignant/anaplastic (MM). High-grade meningiomas such as AMs and MMs are more aggressive, recur more frequently, and portend a worse prognosis than BMs. Currently, the standard treatment for high-grade meningiomas, especially AMs, is ill-defined. In particular, the benefit to survival outcomes of adjuvant radiotherapy post-surgical resection remains unclear. In this study, we investigated the effect of adjuvant radiotherapy (ART) post-surgery on survival outcomes compared to surgery alone for high-grade meningiomas. METHODS PRISMA guidelines were a foundation for our literature review. We screened the PubMed database for studies reporting overall survival (OS), progression free survival (PFS), and tumor recurrence for intracranial, primary AM and MMs treated with surgery+ART or surgery alone. Fixed and random effect models compared tumor control rate for AM aforementioned groups. RESULTS Mean 5-year PFS was 76.9% for AM (surgery+ART) and 55.9% for AM (surgery alone) patients. Mean 5-year OS was 81.3% and 74% for AM (surgery+ART) and AM (surgery alone) groups, respectively. Overall, the mean 5-year PFS for aggregated high-grade meningiomas AM+MM (surgery+ART) was 67.6%. Fixed effect models revealed tumor control rate as 76% for AM (surgery+ART) and 69% for AM (surgery alone) groups. ART induced toxicity incidence ranged from 12.0% to 35.5% for AM and MM patients. CONCLUSIONS Our analysis suggests that (surgery+ART) may increase PFS, OS, and tumor control rates in high-grade meningiomas. However, further studies involving surgery+ ART should be conducted to fully evaluate the ideal radiosurgical candidate, modality, and dosage.
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Affiliation(s)
- Ansley Unterberger
- Department of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA.,David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Thien Nguyen
- Department of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Courtney Duong
- Department of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Aditya Kondajji
- Department of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA.,David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Daniel Kulinich
- Department of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA.,David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Isaac Yang
- Department of Neurosurgery, Los Angeles (UCLA), Los Angeles, CA, USA. .,Department of Radiation Oncology, Los Angeles (UCLA), Los Angeles, CA, USA. .,Department of Head and Neck Surgery, Los Angeles (UCLA), Los Angeles, CA, USA. .,Jonsson Comprehensive Cancer Center, Los Angeles (UCLA), Los Angeles, CA, USA. .,Los Angeles Biomedical Research Institute, Los Angeles (UCLA), Los Angeles, CA, USA. .,Harbor-UCLA Medical Center, Los Angeles (UCLA), Los Angeles, CA, USA. .,David Geffen School of Medicine, Los Angeles (UCLA), Los Angeles, CA, USA.
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