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Pai A, Prasad GL, Vasudevan G, Nayak DM. Multifocal atypical teratoid/rhabdoid tumour in an infant-a rare case report. Childs Nerv Syst 2024; 40:1591-1596. [PMID: 38305878 DOI: 10.1007/s00381-023-06274-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/28/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND Atypical teratoid/rhabdoid tumours (AT/RT) are uncommon but aggressive, malignant tumours in the paediatric age group. Presentation of concomitant supratentorial and infratentorial lesions in an infant is extremely rare. We discuss an infant diagnosed with such lesions. Systematic PubMed search was conducted using keywords 'atypical teratoid /rhabdoid tumor', 'paediatric' and 'multifocal'. Reports were included for patients younger than 18 years with two or more lesions. The search yielded additional five cases and were tabulated. Age, sex, location, treatment given and survival/outcome were noted. CASE REPORT A 10-month-old child presented with complaints of drowsiness and intractable vomiting. Imaging showed multifocal supra- and infratentorial lesions with obstructive hydrocephalus. The child underwent ventriculoperitoneal shunt followed by surgical removal of the posterior fossa lesion. Histopathological features were consistent with AT/RT. CONCLUSIONS Multifocal AT/RT are very rare. The impact of multifocality in the outcome is not known as very few reports are available. Newer targeted therapies may offer insight in improving outcomes in the future.
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Affiliation(s)
- Ashwin Pai
- Department of Neurosurgery, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - G Lakshmi Prasad
- Department of Neurosurgery, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.
- Department of Neurosurgery, Kasturba Hospital, Manipal, India.
| | - Geetha Vasudevan
- Department of Pathology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Deepak M Nayak
- Department of Pathology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
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2
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Ismail S, Ghanem L, Ibrahim L, Abdulrahman M, Alshehabi Z, Issa R. Atypical teratoid/rhabdoid tumor of the central nervous system: Clinicopathological features of two challenging cases. Int J Surg Case Rep 2024; 117:109531. [PMID: 38507938 PMCID: PMC10963598 DOI: 10.1016/j.ijscr.2024.109531] [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: 02/14/2024] [Revised: 03/08/2024] [Accepted: 03/13/2024] [Indexed: 03/22/2024] Open
Abstract
INTRODUCTION Atypical Teratoid/Rhabdoid Tumor (AT/RT) is a rare aggressive neoplasm that mainly affects the pediatric population with a peak incidence in the first two years of life and a slight male predominance, whereas presentation of this neoplasm in older ages is extremely rare. CASE PRESENTATION Herein, we present two cases of AT/RT. In the first case, a 9-year-old female presented with diplopia, dizziness, headache, and morning vomiting. CT Scan of the head demonstrated a heterogeneous mass in the left frontal-parietal region with vasogenic edema and midline deviation. In the second case, a 57-year-old female presented with severe generalized headache, numbness, and tingling in the right hand. MRI revealed a lobulated cystic mass in the right occipitotemporal region, with surrounding edema compressing the left lateral ventricle and causing a midline shift to the left, and enlargement of the right lateral ventricle. In both case, histopathological and immunohistochemical examinations revealed the diagnosis of Atypical teratoid/Rhabdoid tumors. CLINICAL DISCUSSION Microscopic examination demonstrated the proliferation of medium-sized to large cells with abundant eosinophilic cytoplasm, large vesicular eccentric nuclei, and conspicuous nucleoli with areas of necrosis and hemorrhage, thus confirming the diagnosis with adequate immunohistochemical staining. The first patient developed signs of recurrence and passed away six months later, whereas in the second case, the 57-year-old female received radiotherapy for 6 weeks before being put on chemotherapy. CONCLUSION Despite the challenges facing the diagnosis of this aggressive neoplasm, we managed to present our cases with detailed histopathological and immunohistochemical examinations.
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Affiliation(s)
- Sawsan Ismail
- Faculty of Medicine, Al-Andalus University for Medical Sciences, Tartus, Syria; Cancer Research Center, Department of Pathology, Faculty of Medicine, Tishreen University Hospital, Lattakia, Syria.
| | - Lina Ghanem
- Cancer Research Center, Department of Pathology, Faculty of Medicine, Tishreen University Hospital, Lattakia, Syria
| | - Leen Ibrahim
- Cancer Research Center, Department of Pathology, Faculty of Medicine, Tishreen University Hospital, Lattakia, Syria
| | - Mohammed Abdulrahman
- Department of Neurosurgery, Faculty of Medicine, Tishreen University, Lattakia, Syria
| | - Zuheir Alshehabi
- Cancer Research Center, Department of Pathology, Faculty of Medicine, Tishreen University Hospital, Lattakia, Syria; Department of Pathology, Faculty of Medicine, Tishreen University, Lattakia, Syria
| | - Rana Issa
- Department of Pathology, Faculty of Medicine, Tishreen University, Lattakia, Syria
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3
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Tanyel T, Nadarajan C, Duc NM, Keserci B. Deciphering Machine Learning Decisions to Distinguish between Posterior Fossa Tumor Types Using MRI Features: What Do the Data Tell Us? Cancers (Basel) 2023; 15:4015. [PMID: 37627043 PMCID: PMC10452543 DOI: 10.3390/cancers15164015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/22/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023] Open
Abstract
Machine learning (ML) models have become capable of making critical decisions on our behalf. Nevertheless, due to complexity of these models, interpreting their decisions can be challenging, and humans cannot always control them. This paper provides explanations of decisions made by ML models in diagnosing four types of posterior fossa tumors: medulloblastoma, ependymoma, pilocytic astrocytoma, and brainstem glioma. The proposed methodology involves data analysis using kernel density estimations with Gaussian distributions to examine individual MRI features, conducting an analysis on the relationships between these features, and performing a comprehensive analysis of ML model behavior. This approach offers a simple yet informative and reliable means of identifying and validating distinguishable MRI features for the diagnosis of pediatric brain tumors. By presenting a comprehensive analysis of the responses of the four pediatric tumor types to each other and to ML models in a single source, this study aims to bridge the knowledge gap in the existing literature concerning the relationship between ML and medical outcomes. The results highlight that employing a simplistic approach in the absence of very large datasets leads to significantly more pronounced and explainable outcomes, as expected. Additionally, the study also demonstrates that the pre-analysis results consistently align with the outputs of the ML models and the clinical findings reported in the existing literature.
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Affiliation(s)
- Toygar Tanyel
- Department of Computer Engineering, Yildiz Technical University, Istanbul 34349, Türkiye;
| | - Chandran Nadarajan
- Department of Radiology, Gleneagles Hospital Kota Kinabalu, Kota Kinabalu 88100, Sabah, Malaysia;
| | - Nguyen Minh Duc
- Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City 700000, Vietnam;
| | - Bilgin Keserci
- Department of Biomedical Engineering, Yildiz Technical University, Istanbul 34349, Türkiye
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Lazarte-Rantes C, Pillaca-Cruzado O, Baca-Hinojosa N, Mamani W, Lee-Diaz J, Ugas-Charcape CF. MRI findings of primary intracranial sarcomas in children. Pediatr Radiol 2023; 53:1698-1703. [PMID: 36943446 DOI: 10.1007/s00247-023-05605-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/15/2022] [Accepted: 01/12/2023] [Indexed: 03/23/2023]
Abstract
BACKGROUND Primary intracranial sarcoma is a very rare high-grade tumor. Scant reports exist on this malignancy in children, which limit the information about its imaging characteristics. OBJECTIVE We aimed to describe the main characteristics of primary intracranial sarcoma on MRI. MATERIALS AND METHODS In this cross-sectional descriptive observational study, we reviewed 18 patients (aged 1-18 years) with primary intracranial sarcomas diagnosed between 2015 and 2021. RESULTS The main findings were contrast enhancement (100%), diffusion restriction (78%), hemorrhage (89%), meningeal extension (67%), necrosis (67%), and supratentorial location (72%). CONCLUSION Primary intracranial sarcoma are typically supratentorial in location. MRI findings of primary intracranial sarcoma are similar to other intracranial malignancies.
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Affiliation(s)
- Claudia Lazarte-Rantes
- Department of Diagnostic Imaging, Instituto Nacional de Salud del Niño San Borja, Av. Javier Prado Este 3101, 15037, Lima, Peru.
| | - Osmar Pillaca-Cruzado
- Department of Diagnostic Imaging, Instituto Nacional de Salud del Niño San Borja, Av. Javier Prado Este 3101, 15037, Lima, Peru
| | - Nella Baca-Hinojosa
- Department of Diagnostic Imaging, Hospital Luis Negreiros Vega, Av. Tomas Valle 3535, 07036, Lima, Peru
| | - Waldemar Mamani
- Department of Diagnostic Imaging, Hospital Daniel Alcides Carrión, Av. Guardia Chalaca 2176, 07016, Lima, Peru
| | - Jorge Lee-Diaz
- Department of Diagnostic Imaging, Le Bonheur Children Hospital, University of Tennessee Health Science Center, 50 North Dunlap, Memphis, TN, 38103, USA
| | - Carlos F Ugas-Charcape
- Department of Diagnostic Imaging, Instituto Nacional de Salud del Niño San Borja, Av. Javier Prado Este 3101, 15037, Lima, Peru
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5
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Wu HW, Wu CH, Lin SC, Wu CC, Chen HH, Chen YW, Lee YY, Chang FC. MRI features of pediatric atypical teratoid rhabdoid tumors and medulloblastomas of the posterior fossa. Cancer Med 2023; 12:10449-10461. [PMID: 36916326 DOI: 10.1002/cam4.5780] [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: 10/13/2022] [Revised: 02/08/2023] [Accepted: 02/25/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Atypical teratoid rhabdoid tumor (AT/RT) occurs at a younger age and is associated with a worse prognosis than medulloblastoma; however, these two tumor entities are mostly indistinguishable on neuroimaging. The aim of our study was to differentiate AT/RT and medulloblastoma based on their clinical and MRI features to enhance treatment planning and outcome prediction. METHODS From 2005-2021, we retrospectively enrolled 16 patients with histopathologically diagnosed AT/RT and 57 patients with medulloblastoma at our institute. We evaluated their clinical data and MRI findings, including lesion signals, intratumoral morphologies, and peritumoral/distal involvement. RESULTS The age of children with AT/RT was younger than that of children with medulloblastoma (2.8 ± 4.9 [0-17] vs. 6.5 ± 4.0 [0-18], p < 0.001), and the overall survival rate was lower (21.4% vs. 66.0%, p = 0.005). Regarding lesion signals on MRI, AT/RT had a lower ADCmin (cutoff value ≤544.7 × 10-6 mm2 /s, p < 0.001), a lower ADC ratio (cutoff value ≤0.705, p < 0.001), and a higher DWI ratio (cutoff value ≥1.595, p < 0.001) than medulloblastoma. Regarding intratumoral morphology, the "tumor central vein sign" was mostly exclusive to medulloblastoma (24/57, 42.1%; AT/RT 1/16, 6.3%; p = 0.007). Regarding peritumoral invasion on T2WI, AT/RT was more prone to invasion of the brainstem (p < 0.001) and middle cerebellar peduncle (p < 0.001) than medulloblastoma. CONCLUSIONS MRI findings of a lower ADC value, more peritumoral invasion, and absence of the "tumor central vein sign" may be helpful to differentiate AT/RT from medulloblastoma. These distinct MRI findings together with the younger age of AT/RT patients may explain the worse outcomes in AT/RT patients.
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Affiliation(s)
- Hsin-Wei Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chia-Hung Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shih-Chieh Lin
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chih-Chun Wu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Hsin-Hung Chen
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Pediatric Neurosurgery, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Wei Chen
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medical Imaging and Radiological Technology, Yuanpei University of Medical Technology, Hsinchu City, Taiwan
| | - Yi-Yen Lee
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of Pediatric Neurosurgery, Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Feng-Chi Chang
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Kang X, Xia H, Skudder-Hill L, Yin Y, Wang X. Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET)/Computed Tomography Features of Atypical Teratoid/Rhabdoid Tumors: Case Series and Review. J Child Neurol 2022; 37:1003-1009. [PMID: 36417494 DOI: 10.1177/08830738221129968] [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] [Indexed: 11/25/2022]
Abstract
Purpose: The purpose of this article is to explore the clinical and neuroradiologic properties of atypical teratoid/rhabdoid tumors. Methods: Data from 6 pediatric patients with atypical teratoid/rhabdoid tumors, which mainly contained the features of magnetic resonance imaging (MRI) and positron emission tomography (PET)/computed tomography (CT), was retrospectively analyzed. Follow-up was conducted in all patients through clinic services and/or telephone consultation. Results: The patients included 4 males and 2 females, aged from 3.2 to 83.1 months at the initial diagnosis. All patients had MRI scans. Two patients underwent 18F-fluorodeoxyglucose PET/CT scintigraphy preoperatively and 4 postoperatively. All primary lesions were located in the cranial cavity and the average diameter of lesions was 37.2 mm. Cerebrospinal fluid spread on enhanced T1-weighted images were found in 2 patients. Multiple metastases were found on MRI and PET/CT scans, which were located at cranial cavity, spinal cord, lung and lymph node. The primary and metastatic lesions showed evident uptake of 18F-fluorodeoxyglucose. Two patients underwent total tumor removal, and 4 patients underwent subtotal removal. None of the patients received shunt surgery. Follow-up was performed in all 6 patients. One patient survived event-free 38.4 months after resection. The mean overall survival of the remaining 5 patients was 5.1 months. Conclusion: We identified specific PET/CT and MRI features that can facilitate the recognition of atypical teratoid/rhabdoid tumors prior to biopsy.
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Affiliation(s)
- Xu Kang
- Department of Pediatric Neurosurgery, Xinhua Hospital, 91603Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hongping Xia
- Department of Neonatology, Xinhua Hospital, 91603Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Loren Skudder-Hill
- Department of Pediatric Neurosurgery, 191612The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yafu Yin
- Department of Nuclear Medicine, 91603Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiaoqiang Wang
- Department of Pediatric Neurosurgery, Xinhua Hospital, 91603Shanghai Jiaotong University School of Medicine, Shanghai, China
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Gonçalves FG, Zandifar A, Ub Kim JD, Tierradentro-García LO, Ghosh A, Khrichenko D, Andronikou S, Vossough A. Application of Apparent Diffusion Coefficient Histogram Metrics for Differentiation of Pediatric Posterior Fossa Tumors : A Large Retrospective Study and Brief Review of Literature. Clin Neuroradiol 2022; 32:1097-1108. [PMID: 35674799 DOI: 10.1007/s00062-022-01179-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/08/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE This study aimed to evaluate the application of apparent diffusion coefficient (ADC) histogram analysis to differentiate posterior fossa tumors (PFTs) in children. METHODS A total of 175 pediatric patients with PFT, including 75 pilocytic astrocytomas (PA), 59 medulloblastomas, 16 ependymomas, and 13 atypical teratoid rhabdoid tumors (ATRT), were analyzed. Tumors were visually assessed using DWI trace and conventional MRI images and manually segmented and post-processed using parametric software (pMRI). Furthermore, tumor ADC values were normalized to the thalamus and cerebellar cortex. The following histogram metrics were obtained: entropy, minimum, 10th, and 90th percentiles, maximum, mean, median, skewness, and kurtosis to distinguish the different types of tumors. Kruskal Wallis and Mann-Whitney U tests were used to evaluate the differences. Finally, receiver operating characteristic (ROC) curves were utilized to determine the optimal cut-off values for differentiating the various PFTs. RESULTS Most ADC histogram metrics showed significant differences between PFTs (p < 0.001) except for entropy, skewness, and kurtosis. There were significant pairwise differences in ADC metrics for PA versus medulloblastoma, PA versus ependymoma, PA versus ATRT, medulloblastoma versus ependymoma, and ependymoma versus ATRT (all p < 0.05). Our results showed no significant differences between medulloblastoma and ATRT. Normalized ADC data showed similar results to the absolute ADC value analysis. ROC curve analysis for normalized ADCmedian values to thalamus showed 94.9% sensitivity (95% CI: 85-100%) and 93.3% specificity (95% CI: 87-100%) for differentiating medulloblastoma from ependymoma. CONCLUSION ADC histogram metrics can be applied to differentiate most types of posterior fossa tumors in children.
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Affiliation(s)
- Fabrício Guimarães Gonçalves
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Alireza Zandifar
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
| | - Jorge Du Ub Kim
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | - Adarsh Ghosh
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Dmitry Khrichenko
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Savvas Andronikou
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Arastoo Vossough
- Department of Radiology, Division of Neuroradiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Parenrengi MA, Permana GI, Suryaningtyas W, Fauziah D. The aggressive progression of primary intracranial atypical teratoid/rhabdoid tumor after surgical resection: A case report. Int J Surg Case Rep 2022; 91:106790. [PMID: 35086049 PMCID: PMC8801990 DOI: 10.1016/j.ijscr.2022.106790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/16/2022] [Accepted: 01/20/2022] [Indexed: 11/17/2022] Open
Affiliation(s)
- Muhammad Arifin Parenrengi
- Department of Neurosurgery, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, East Java, Indonesia.
| | - Galih Indra Permana
- Department of Neurosurgery, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, East Java, Indonesia
| | - Wihasto Suryaningtyas
- Department of Neurosurgery, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, East Java, Indonesia
| | - Dyah Fauziah
- Department of Anatomical Pathology, Universitas Airlangga - Dr. Soetomo General Academic Hospital, Surabaya, East Java, Indonesia
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Jana M, Sinha P, Seth R, Kaur K. Clival atypical teratoid/rhabdoid tumor: A diagnostic dilemma. J Pediatr Neurosci 2022. [DOI: 10.4103/jpn.jpn_145_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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10
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Dasgupta A, Maitre M, Pungavkar S, Gupta T. Magnetic Resonance Imaging in the Contemporary Management of Medulloblastoma: Current and Emerging Applications. Methods Mol Biol 2022; 2423:187-214. [PMID: 34978700 DOI: 10.1007/978-1-0716-1952-0_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Medulloblastoma, the most common malignant primary brain tumor in children, is now considered to comprise of four distinct molecular subgroups-wingless (WNT), sonic hedgehog (SHH), Group 3, and Group 4 medulloblastoma, each associated with distinct developmental origins, unique transcriptional profiles, diverse phenotypes, and variable clinical behavior. Due to its exquisite anatomic resolution, multiparametric nature, and ability to image the entire craniospinal axis, magnetic resonance imaging (MRI) is the preferred and recommended first-line imaging modality for suspected brain tumors including medulloblastoma. Preoperative MRI can reliably differentiate medulloblastoma from other common childhood posterior fossa masses such as ependymoma, pilocytic astrocytoma, and brainstem glioma. On T1-weighted images, medulloblastoma is generally iso- to hypointense, while on T2-weighted images, the densely packed cellular component of the tumor is significantly hypointense and displays restricted diffusion on diffusion-weighted imaging. Following intravenous gadolinium, medulloblastoma shows significant but variable and heterogeneous contrast enhancement. Given the propensity of neuraxial spread in medulloblastoma, sagittal fat-suppressed T1-postcontrast spinal MRI is recommended to rule out leptomeningeal metastases for accurate staging. Following neurosurgical excision, postoperative MRI done within 24-48 h confirms the extent of resection, accurately quantifying residual tumor burden imperative for risk assignment. Post-treatment MRI is needed to assess response and effectiveness of adjuvant radiotherapy and systemic chemotherapy. After completion of planned therapy, surveillance MRI is recommended periodically on follow-up for early detection of recurrence for timely institution of salvage therapy, as well as for monitoring treatment-related late complications. Recent studies suggest that preoperative MRI can reliably identify SHH and Group 4 medulloblastoma but has suboptimal predictive accuracy for WNT and Group 3 tumors. In this review, we focus on the role of MRI in the diagnosis, staging, and quantifying residual disease; post-treatment response assessment; and periodic surveillance, and provide a brief summary on radiogenomics in the contemporary management of medulloblastoma.
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Affiliation(s)
- Archya Dasgupta
- Department of Radiation Oncology, Neuro-Oncology Disease Management Group, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India.
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
| | - Madan Maitre
- Department of Radiation Oncology, Neuro-Oncology Disease Management Group, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - Sona Pungavkar
- Department of Radiodiagnosis and Imaging, Global Hospitals, Mumbai, India
| | - Tejpal Gupta
- Department of Radiation Oncology, Neuro-Oncology Disease Management Group, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
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Taguchi A, Kinoshita Y, Amatya VJ, Takayasu T, Takano M, Yonezawa U, Tominaga A, Takeshima Y, Sugiyama K, Yamasaki F. Intratumoral Hemorrhage After Endoscopic Third Ventriculostomy for Obstructive Hydrocephalus Caused by Brain Tumors. World Neurosurg 2021; 158:e256-e264. [PMID: 34737098 DOI: 10.1016/j.wneu.2021.10.161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Endoscopic third ventriculostomy (ETV) for obstructive hydrocephalus and endoscopic biopsy (EB) for intraventricular and paraventricular tumors are standard therapies because they are minimally invasive procedures. Although EB-associated hemorrhagic risk has been well documented, there have been only a few reports on hemorrhagic risk associated with ETV. We conducted a single-institution retrospective study on the incidence of hemorrhage secondary to EB and/or ETV. METHODS We retrospectively reviewed patient characteristics, procedure, pathological findings, and complications including hemorrhage of 100 patients with intraventricular and paraventricular tumors who underwent EB and/or ETV at our institution from 2000 to 2020. RESULTS EB/ETV combined surgery (combined group), EB-alone surgery (EB-alone group), and ETV-alone surgery (ETV-alone group) were performed in 44 (44%), 24 (24%), and 32 (32%) patients, respectively, and all procedures were successful. The rates of definitive and suggestive diagnoses in EB were 76.5% and 23.5%, respectively. Adverse events were observed in 6 patients. In the combined group, acute obstruction of the ETV stoma was observed in 1 patient and transient double vision was observed in 1 patient. Transient aqueductal stenosis/obstruction was observed in 2 patients in the EB-alone group. In the ETV-alone group, hemorrhage was observed in 2 patients; these patients developed intratumoral hemorrhage despite ETV-alone surgery. Subsequently, these 2 patients underwent tumor removal, and the histopathological diagnosis was atypical teratoid/rhabdoid tumor in both. CONCLUSIONS For obstructive hydrocephalus with atypical teratoid/rhabdoid tumor, physicians must be aware of the risk of postoperative intratumoral hemorrhage after performing ETV.
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Affiliation(s)
- Akira Taguchi
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
| | - Yasuyuki Kinoshita
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Vishwa Jeet Amatya
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takeshi Takayasu
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Motoki Takano
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Ushio Yonezawa
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Atsushi Tominaga
- Department of Neurosurgery and Neuro-Endovascular Therapy, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Yukio Takeshima
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuhiko Sugiyama
- Department of Clinical Oncology and Neuro-oncology Program, Hiroshima University Hospital, Hiroshima, Japan
| | - Fumiyuki Yamasaki
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Mitsui N, Oikawa K, Tanino M, Kinoshita M. SMARCB1 (INI1) retained but SMARCA4 (BRG1) negative atypical teratoid/rhabdoid tumor arising at the bilateral cerebellopontine angles: a case report. J Surg Case Rep 2021; 2021:rjab400. [PMID: 34611487 PMCID: PMC8485679 DOI: 10.1093/jscr/rjab400] [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: 07/18/2021] [Accepted: 08/20/2021] [Indexed: 11/17/2022] Open
Abstract
Most atypical teratoid/rhabdoid tumor (AT/RT) of the central nervous system shows an inactivation of SMARCB1 (INI1) and is considered as the hallmark of this neoplasm. However, AT/RT could exceptionally rarely present retained SMARCB1 (INI1) but inactivated SMARCA4 (BRG1). Here, the authors report a rare case of a 2-year-old boy with a SMARCB1 (INI1) retained but SMARCA4 (BRG1) negative AT/RT arising at the bilateral cerebellopontine angles mimicking neurofibromatosis type 2. The tumor was highly aggressive and was refractory to all treatment modalities. This case highlights the challenges during differential diagnosis of atypical cerebellopontine angle tumors of childhood and the importance of thoroughly investigating SMARCB1 (INI1) and SMARCA4 (BRG1) when AT/RT is suspected.
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Affiliation(s)
- Nobuyuki Mitsui
- Department of Neurosurgery, Asahikawa Medical University, Asahikawa, Japan
| | - Kensuke Oikawa
- Department of Pathology, Asahikawa Medical University, Asahikawa, Japan
| | - Mishie Tanino
- Department of Diagnostic Pathology, Asahikawa Medical University Hospital, Asahikawa, Japan
| | - Manabu Kinoshita
- Department of Neurosurgery, Asahikawa Medical University, Asahikawa, Japan
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Atypical teratoid rhabdoid tumor: molecular insights and translation to novel therapeutics. J Neurooncol 2020; 150:47-56. [PMID: 33021733 DOI: 10.1007/s11060-020-03639-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 09/28/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Atypical teratoid rhabdoid tumor (ATRT) is a rare, often lethal brain tumor of childhood characterized by a complex epigenetic landscape amongst a simple genetic background. Recent molecular studies have defined key biologic events that contribute to tumorigenesis and molecular subtypes of ATRT. METHODS Seminal studies on ATRT are reviewed with an emphasis on molecular pathogenesis and its relevance to novel therapeutics. RESULTS In this review, we summarize the key clinicopathologic and molecular features of ATRT, completed and ongoing clinical trials and outline the translational potential of novel insights into the molecular pathogenesis of this tumor. CONCLUSIONS SMARCB1 loss is the key genetic event in ATRT pathogenesis that leads to widespread epigenetic dysregulation and loss of lineage-specific enhancers. Current work is defining subtype-specific treatments that target underlying molecular derangements that drive tumorigenesis.
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14
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Kerleroux B, Cottier JP, Janot K, Listrat A, Sirinelli D, Morel B. Posterior fossa tumors in children: Radiological tips & tricks in the age of genomic tumor classification and advance MR technology. J Neuroradiol 2019; 47:46-53. [PMID: 31541639 DOI: 10.1016/j.neurad.2019.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 01/25/2023]
Abstract
Imaging plays a major role in the comprehensive assessment of posterior fossa tumor in children (PFTC). The objective is to propose a global method relying on the combined analysis of radiological, clinical and epidemiological criteria, (taking into account the child's age and the topography of the lesion) in order to improve our histological approach in imaging, helping the management and approach for surgeons in providing information to the patients' parents. Infratentorial tumors are the most frequent in children, representing mainly medulloblastoma, pilocytic astrocytoma and brainstem glioma. Pre-surgical identification of the tumor type and its aggressiveness could be improved by the combined analysis of key imaging features with epidemiologic data.
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Affiliation(s)
- Basile Kerleroux
- Department of Pediatric Radiology, Clocheville University Hospital, CHRU Tours, Tours, France; Department of Neuroradiology, Bretonneau University Hospital, CHRU Tours, Tours, France.
| | - Jean Philippe Cottier
- Department of Neuroradiology, Bretonneau University Hospital, CHRU Tours, Tours, France; Faculty of Medicine, Francois-Rabelais University, Tours, France
| | - Kévin Janot
- Department of Neuroradiology, Bretonneau University Hospital, CHRU Tours, Tours, France; Faculty of Medicine, Francois-Rabelais University, Tours, France
| | - Antoine Listrat
- Department of Pediatric Neurosurgery, Clocheville University Hospital, CHRU Tours, Tours, France
| | - Dominique Sirinelli
- Department of Pediatric Radiology, Clocheville University Hospital, CHRU Tours, Tours, France; Faculty of Medicine, Francois-Rabelais University, Tours, France
| | - Baptiste Morel
- Department of Pediatric Radiology, Clocheville University Hospital, CHRU Tours, Tours, France; Faculty of Medicine, Francois-Rabelais University, Tours, France
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15
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Freiburg Neuropathology Case Conference : Posterior Fossa Mass in an Infant. Clin Neuroradiol 2019; 29:177-184. [PMID: 30734054 DOI: 10.1007/s00062-019-00759-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Pediatric Tumor Neuroradiology. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-68536-6_36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Bisdas S, D’Arco F. Pediatric Tumor Neuroradiology. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-61423-6_36-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Bisdas S, D’Arco F. Pediatric Tumor Neuroradiology. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-61423-6_36-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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D'Arco F, Khan F, Mankad K, Ganau M, Caro-Dominguez P, Bisdas S. Differential diagnosis of posterior fossa tumours in children: new insights. Pediatr Radiol 2018; 48:1955-1963. [PMID: 30120502 DOI: 10.1007/s00247-018-4224-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 07/27/2018] [Indexed: 10/28/2022]
Abstract
Central nervous system neoplasms are the most common solid tumours that develop in children, with the greatest proportion located in the infratentorium. The 2016 World Health Organization Central Nervous System tumour classification evolved from the 2007 edition with the integration of molecular and genetic profiling into the diagnosis, the addition of new entities and the removal of others. Radiology can assist with the subtyping of tumours from certain characteristics described below to provide prognostic information and guide further management. The latest insights into the radiologic characteristics of these posterior fossa tumours are presented below: medulloblastoma, ependymoma, pilocytic astrocytoma, embryonal tumours with multilayered rosettes, atypical teratoid rhabdoid tumours, diffuse midline glioma and the new entity of diffuse leptomeningeal glioneuronal tumours.
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Affiliation(s)
- Felice D'Arco
- Unit of Paediatric Neuroradiology, Department of Radiology, Great Ormond Street Hospital NHS Trust, Great Ormond St, London, WC1N 3JH, UK. felice.d'
| | - Faraan Khan
- Unit of Paediatric Neuroradiology, Department of Radiology, Great Ormond Street Hospital NHS Trust, Great Ormond St, London, WC1N 3JH, UK
| | - Kshitij Mankad
- Unit of Paediatric Neuroradiology, Department of Radiology, Great Ormond Street Hospital NHS Trust, Great Ormond St, London, WC1N 3JH, UK
| | - Mario Ganau
- Department of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, ON, Canada
| | - Pablo Caro-Dominguez
- Department of Diagnostic Imaging, Hospital VIAMED, Santa Angela de la Cruz, Sevilla, Spain
| | - Sotirios Bisdas
- Lysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, London, UK
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20
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Nesvick CL, Nageswara Rao AA, Raghunathan A, Biegel JA, Daniels DJ. Case-based review: atypical teratoid/rhabdoid tumor. Neurooncol Pract 2018; 6:163-178. [PMID: 31386032 DOI: 10.1093/nop/npy037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Atypical teratoid/rhabdoid tumor (AT/RT) is a rare CNS cancer that typically occurs in children younger than 3 years of age. Histologically, AT/RTs are embryonal tumors that contain a rhabdoid component as well as areas with primitive neuroectodermal, mesenchymal, and epithelial features. Compared to other CNS tumors of childhood, AT/RTs are characterized by their rapid growth, short symptomatic prodrome, and large size upon presentation, often leading to brain compression and intracranial hypertension requiring urgent intervention. For decades, the mainstay of care has been a combination of maximal safe surgical resection followed by adjuvant chemotherapy and radiotherapy. Despite advances in each of these modalities, the relative paucity of data on these tumors, their inherently aggressive course, and a lack of molecular data have limited advances in treatment over the past 3 decades. Recent large-scale, multicenter interdisciplinary studies, however, have significantly advanced our understanding of the molecular pathogenesis of these tumors. Multiple clinical trials testing molecularly targeted therapies are underway, offering hope for patients with AT/RT and their families.
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Affiliation(s)
- Cody L Nesvick
- Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Amulya A Nageswara Rao
- Department of Pediatric and Adolescent Medicine, Division of Pediatric Hematology/Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Aditya Raghunathan
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jaclyn A Biegel
- Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Keck School of Medicine of University of Southern California, USA
| | - David J Daniels
- Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota, USA
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21
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Dangouloff-Ros V, Varlet P, Levy R, Beccaria K, Puget S, Dufour C, Boddaert N. Imaging features of medulloblastoma: Conventional imaging, diffusion-weighted imaging, perfusion-weighted imaging, and spectroscopy: From general features to subtypes and characteristics. Neurochirurgie 2018; 67:6-13. [PMID: 30170827 DOI: 10.1016/j.neuchi.2017.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/13/2017] [Accepted: 10/29/2017] [Indexed: 12/13/2022]
Abstract
Medulloblastoma is a frequent high-grade neoplasm among pediatric brain tumours. Its classical imaging features are a midline tumour growing into the fourth ventricle, hyperdense on CT-scan, displaying a hypersignal when using diffusion-weighted imaging, with a variable contrast enhancement. Nevertheless, atypical imaging features have been widely reported, varying according to the age of the patient, and histopathological subtype. In this study, we review the classical and atypical imaging features of medulloblastomas, with emphasis on advanced MRI techniques, histopathological and molecular subtypes and characteristics, and follow-up modalities.
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Affiliation(s)
- V Dangouloff-Ros
- Department of pediatric radiology, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75105 Paris, France; Inserm U1000, 149, rue de Sèvres, 75015 Paris, France; University René-Descartes, PRES-Sorbonne-Paris-Cité, 12, rue de l'École-de-Médecine, Paris, France.
| | - P Varlet
- University René-Descartes, PRES-Sorbonne-Paris-Cité, 12, rue de l'École-de-Médecine, Paris, France; Department of neuropathology, centre hospitalier Sainte-Anne, 1, rue Cabanis, 75014 Paris, France
| | - R Levy
- Department of pediatric radiology, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75105 Paris, France; Inserm U1000, 149, rue de Sèvres, 75015 Paris, France; University René-Descartes, PRES-Sorbonne-Paris-Cité, 12, rue de l'École-de-Médecine, Paris, France
| | - K Beccaria
- University René-Descartes, PRES-Sorbonne-Paris-Cité, 12, rue de l'École-de-Médecine, Paris, France; Department of pediatric neurosurgery, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75105 Paris, France
| | - S Puget
- University René-Descartes, PRES-Sorbonne-Paris-Cité, 12, rue de l'École-de-Médecine, Paris, France; Department of pediatric neurosurgery, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75105 Paris, France
| | - C Dufour
- Department of pediatric and adolescent oncology, Gustave-Roussy Institute, 114, rue Édouard-Vaillant, 94800 Villejuif, France
| | - N Boddaert
- Department of pediatric radiology, hôpital Necker-Enfants-Malades, AP-HP, 149, rue de Sèvres, 75105 Paris, France; Inserm U1000, 149, rue de Sèvres, 75015 Paris, France; University René-Descartes, PRES-Sorbonne-Paris-Cité, 12, rue de l'École-de-Médecine, Paris, France; UMR 1163, institut Imagine, 24, boulevard du Montparnasse, 75015 Paris, France
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22
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Ren YM, Wu X, You C, Zhang YK, Li Q, Ju Y. Multimodal treatments combined with gamma knife surgery for primary atypical teratoid/rhabdoid tumor of the central nervous system: a single-institute experience of 18 patients. Childs Nerv Syst 2018; 34:627-638. [PMID: 29218405 DOI: 10.1007/s00381-017-3688-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/01/2017] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Atypical teratoid/rhabdoid tumor (AT/RT) is a rare, highly malignant tumor of the central nervous system with poor prognosis. Nowadays, multimodal management, including surgery, chemotherapy (CMT), and radiation therapy (RT), is advocated. However, AT/RT treatment with gamma knife surgery (GKS) was rarely reported. The aim of this study was to assess the efficacy and safety of GKS for the treatment of AT/RT. PATIENTS AND METHODS Medical records of AT/RT patients who underwent surgery from 2007 to 2014 at the West China Hospital were retrospectively reviewed and statistically analyzed. RESULTS Eighteen patients (12 males and 6 females) were presented with AT/RTs. Median age during presentation was 20.5 months (range, 4-179 months). Twelve patients were < 3 years and six patients were > 3 years. Tumor location was supratentorial in seven patients, infratentorial in ten patients, and center area of the brain in one patient. Treatments performed were as follows: surgery alone in two patients, surgery+RT in two patients, surgery+CMT in five patients, surgery+CMT+RT in two patients, and surgery+CMT+RT+GKS in seven patients. The 2-year overall survival (OS) rate and event-free survival (EFS) rate for all 18 consecutive patients were 33.3 and 27.8%, respectively. Cox regression analyses showed that multimodal management combined with GKS was an independent positive prognostic factor for OS. CONCLUSIONS Although AT/RTs are lethal cancer types, the OS of the disease was improved by using multimodal therapeutic strategies, including surgery, CMT, and RT, combined with GKS.
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Affiliation(s)
- Yan-Ming Ren
- Department of Neurosurgery, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Xia Wu
- Department of Pathology, West China Second Hospital of Sichuan University, Chengdu, Sichuan Province, People's Republic of China
| | - Chao You
- Department of Neurosurgery, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Yue-Kang Zhang
- Department of Neurosurgery, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Qiang Li
- Department of Neurosurgery, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Yan Ju
- Department of Neurosurgery, West China Hospital of Sichuan University, No. 37, Guoxue Alley, Chengdu, 610041, Sichuan Province, People's Republic of China.
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23
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Advantages of high b-value diffusion-weighted imaging for preoperative differential diagnosis between embryonal and ependymal tumors at 3 T MRI. Eur J Radiol 2018; 101:136-143. [DOI: 10.1016/j.ejrad.2018.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 02/05/2018] [Accepted: 02/11/2018] [Indexed: 11/18/2022]
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24
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Mata-Mbemba D, Donnellan J, Krishnan P, Shroff M, Muthusami P. Imaging Features of Common Pediatric Intracranial Tumours: A Primer for the Radiology Trainee. Can Assoc Radiol J 2018; 69:105-117. [DOI: 10.1016/j.carj.2017.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 10/24/2017] [Accepted: 10/26/2017] [Indexed: 11/30/2022] Open
Affiliation(s)
- Daddy Mata-Mbemba
- Division of Neuroradiology, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - John Donnellan
- Division of Image Guided Therapy, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Pradeep Krishnan
- Division of Neuroradiology, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Manohar Shroff
- Division of Neuroradiology, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Prakash Muthusami
- Division of Neuroradiology, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
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25
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A Case Presentation: Rare Occurrence of an Adolescent Male Presenting With an ATRT and Simultaneous Low-grade Glioneuronal Tumor. J Pediatr Hematol Oncol 2017; 39:e456-e459. [PMID: 28731919 DOI: 10.1097/mph.0000000000000871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Atypical rhabdoid/teratoid tumor (ATRT) is an uncommon and highly malignant tumor of the central nervous system. The majority of ATRT tumors occur in infancy and young children located in the posterior fossa. The ideal treatment for cure remains controversial and prognosis is typically unfavorable. We present a case of an atypical presentation of ATRT, presenting in adolescence with an additional low-grade glioneuronal tumor discovered at diagnosis.
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26
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Johnson DR, Guerin JB, Giannini C, Morris JM, Eckel LJ, Kaufmann TJ. 2016 Updates to the WHO Brain Tumor Classification System: What the Radiologist Needs to Know. Radiographics 2017; 37:2164-2180. [DOI: 10.1148/rg.2017170037] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Derek R. Johnson
- From the Department of Radiology (D.R.J., J.B.G., J.M.M., L.J.E., T.J.K.) and Department of Laboratory Medicine and Pathology (C.G.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Julie B. Guerin
- From the Department of Radiology (D.R.J., J.B.G., J.M.M., L.J.E., T.J.K.) and Department of Laboratory Medicine and Pathology (C.G.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Caterina Giannini
- From the Department of Radiology (D.R.J., J.B.G., J.M.M., L.J.E., T.J.K.) and Department of Laboratory Medicine and Pathology (C.G.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Jonathan M. Morris
- From the Department of Radiology (D.R.J., J.B.G., J.M.M., L.J.E., T.J.K.) and Department of Laboratory Medicine and Pathology (C.G.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Lawrence J. Eckel
- From the Department of Radiology (D.R.J., J.B.G., J.M.M., L.J.E., T.J.K.) and Department of Laboratory Medicine and Pathology (C.G.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Timothy J. Kaufmann
- From the Department of Radiology (D.R.J., J.B.G., J.M.M., L.J.E., T.J.K.) and Department of Laboratory Medicine and Pathology (C.G.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
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27
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Morana G, Alves CA, Tortora D, Severino M, Nozza P, Cama A, Ravegnani M, D'Apolito G, Raso A, Milanaccio C, da Costa Leite C, Garrè ML, Rossi A. Added value of diffusion weighted imaging in pediatric central nervous system embryonal tumors surveillance. Oncotarget 2017; 8:60401-60413. [PMID: 28947980 PMCID: PMC5601148 DOI: 10.18632/oncotarget.19553] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/16/2017] [Indexed: 12/29/2022] Open
Abstract
Diffusion weighted imaging (DWI) has an established role in primary CNS embryonal tumor (ET) characterization; however, its diagnostic utility in detecting relapse has never been determined. We aimed to compare DWI and conventional MRI sensitivity in CNS ET recurrence detection, and to evaluate the DWI properties of contrast-enhancing radiation induced lesions (RIL). Fifty-six patients with CNS ET (25 with disease relapse, 6 with RIL and 25 with neither disease relapse nor RIL) were retrospectively evaluated with DWI, conventional MRI (including both T2/FLAIR and post-contrast images), or contrast-enhanced MR imaging (CE-MRI) alone. MRI studies were independently reviewed by two neuroradiologists for detection and localization of potential brain relapses. Sensitivity for focal relapse detection was calculated for each image set on a lesion-by-lesion basis. A descriptive per subject analysis was also performed. Evaluation of follow-up MRI studies served as standard of reference. Focal recurrence detection sensitivity of DWI (96%) was significantly higher than conventional MRI (77%) and CE-MRI alone (51%) (p=0.0003 and p<0.0001). On per subject analysis there were not missed diagnoses for DWI. At the time of DWI relapse detection, conventional MRI missed 2 diagnoses, and CE-MRI 8. Analysis of medulloblastoma relapses revealed that DWI identified a higher number of focal lesions than CE-MRI in subjects with classic variant. All but one RIL did not show restricted diffusion. In conclusion, DWI is a valuable complementary technique allowing for improved detection of focal relapse in CNS ET patients, particularly in children with classic medulloblastoma, and may assist in differentiating recurrence from RIL.
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Affiliation(s)
- Giovanni Morana
- Neuroradiology Unit, Istituto Giannina Gaslini, Genova, Italy
| | - Cesar Augusto Alves
- Neuroradiology Unit, Istituto Giannina Gaslini, Genova, Italy.,Radiology Institute, Hospital das Clinicas, Sao Paulo, Brazil
| | | | | | - Paolo Nozza
- Pathology Unit, Istituto Giannina Gaslini, Genova, Italy
| | - Armando Cama
- Neurosurgery Unit, Istituto Giannina Gaslini, Genova, Italy
| | | | | | | | | | | | | | - Andrea Rossi
- Neuroradiology Unit, Istituto Giannina Gaslini, Genova, Italy
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28
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Katz JS, Peruzzi PP, Pierson CR, Finlay JL, Leonard JR. Cerebellopontine angle tumors in young children, displaying cranial nerve deficits, and restricted diffusion on diffusion-weighted imaging: a new clinical triad for atypical teratoid/rhabdoid tumors. Childs Nerv Syst 2017; 33:833-838. [PMID: 28332155 DOI: 10.1007/s00381-017-3384-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 03/10/2017] [Indexed: 10/19/2022]
Abstract
Atypical teratoid/rhabdoid tumors (AT/RT) of the central nervous system (CNS) are rare, highly malignant neoplasms that carry a poor prognosis. Even with prompt diagnosis, gross total resection and early initiation of intensive adjuvant therapy, the majority of patients will succumb within 9-12 months of diagnosis. The CPA location in children harbors lesions along a wide spectrum varying from benign to highly malignant. Imaging features of lesions within the CPA that aid the diagnostic process will help to initiate early treatment in higher-grade lesions. We report three cases, in very young children, all with cranial nerve deficits, who displayed CPA lesions with restricted diffusion on diffusion-weighted imaging (DWI) with pathology confirming AT/RT. We propose that in young children with a CPA tumor diffusion-weighted imaging should be routinely evaluated to aid in prompt management. In addition, the diagnosis of AT/RT should be highly suggestive in infants presenting with cranial nerve findings as well as DWI restricted diffusion within the CPA.
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Affiliation(s)
- Joel S Katz
- Division of Pediatric Neurosurgery, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA.,Department of Neurosurgery, Grant Medical Center, Columbus, OH, USA
| | - Pier Paolo Peruzzi
- Division of Pediatric Neurosurgery, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA.,Department of Neurosurgery, Ohio State University, Columbus, OH, USA
| | - Christopher R Pierson
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, OH, USA.,Department of Pathology and Division of Anatomy, The Ohio State University, Columbus, OH, USA
| | - Jonathan L Finlay
- Department of Neurosurgery, Ohio State University, Columbus, OH, USA.,Department of Hematology and Oncology, Nationwide Children's Hospital, Columbus, OH, USA
| | - Jeffrey R Leonard
- Division of Pediatric Neurosurgery, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH, 43205, USA. .,Department of Neurosurgery, Ohio State University, Columbus, OH, USA.
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29
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Zamora C, Huisman TA, Izbudak I. Supratentorial Tumors in Pediatric Patients. Neuroimaging Clin N Am 2017; 27:39-67. [DOI: 10.1016/j.nic.2016.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Yu F, Chiang F, Bazan C. Atypical teratoid/rhabdoid tumor arising from the trigeminal nerve in an adult. Neuroradiol J 2016; 29:447-449. [PMID: 27335108 DOI: 10.1177/1971400916654319] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A 30-year-old male presented with left facial pain and numbness. Initial MRI demonstrated an enhancing mass involving the left trigeminal nerve. Follow-up imaging showed interval growth with erosion of the sphenoid body. Surgical resection was performed and immunohistochemistry staining was consistent with an atypical teratoid/rhabdoid tumor. Awareness of this entity and its imaging features such as diffusion restriction, intratumoral hemorrhage, and bony destruction, can help guide confirmatory diagnostic testing and appropriate therapy.
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Affiliation(s)
- Fang Yu
- Department of Radiology, University of Texas Health Science Center at San Antonio, USA
| | - Florence Chiang
- Department of Radiology, University of Texas Health Science Center at San Antonio, USA
| | - Carlos Bazan
- Department of Radiology, University of Texas Health Science Center at San Antonio, USA
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Geng D, Song X, Liu J, Yu Z, Ning F. Medulloblastoma with soft-tissue and skeletal metastases in an adult: A case report. Oncol Lett 2015; 10:2295-2298. [PMID: 26622837 DOI: 10.3892/ol.2015.3595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 06/03/2015] [Indexed: 11/06/2022] Open
Abstract
Medulloblastoma (MB) is a highly malignant primary brain tumor, which occurs in the cerebellum or posterior cranial fossa. MB is most commonly identified in children <10 years of age. The disease is rare in adults, affecting patients aged between 30 and 50 years of age, with an incidence of 0.5 cases per 1,000,000 individuals. Extraneural metastases are reported in 7-10% of cases, most commonly involving the bones and more rarely involving the lymph nodes, visceral organs and bone marrow. The current study presents the case of a 36-year-old male who underwent a gross total resection followed by radiation therapy to the craniospinal axis for the treatment of MB. The patient subsequently developed widespread metastasis, which involved the soft tissue of the occipital bone. Subsequently, the patient was administered palliative radiotherapy and initially exhibited a good clinical response. However, the patient succumbed at 18 months post-diagnosis due to dissemination of the disease. The literature on the extraneural metastasis of MB is also reviewed in the current study.
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Affiliation(s)
- Dianzhong Geng
- Department of Oncology, Binzhou Medical University Hospital, Binzhou, Shandong 256603, P.R. China
| | - Xiaohua Song
- Department of Obstetrics and Gynecology, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Jing Liu
- Department of Regular Physical Examination Centre, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Zeshun Yu
- Department of Oncology, Binzhou Medical University Hospital, Binzhou, Shandong 256603, P.R. China
| | - Fangling Ning
- Department of Oncology, Binzhou Medical University Hospital, Binzhou, Shandong 256603, P.R. China
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Han C, Zhao L, Zhong S, Wu X, Guo J, Zhuang X, Han H. A comparison of high b-value vs standard b-value diffusion-weighted magnetic resonance imaging at 3.0 T for medulloblastomas. Br J Radiol 2015; 88:20150220. [PMID: 26235143 DOI: 10.1259/bjr.20150220] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To investigate the utility of diffusion-weighted (DW) MRI using high b-value vs standard b-value for patients with medulloblastoma (MB). Minimum apparent diffusion coefficient (ADCMIN) values were also compared with tumour cellularity. METHODS High and standard b-value DW images were obtained for 17 patients with MB. The number and location of the lesions, signal intensities (SIs), signal-to-noise ratios (SNRs), contrast-to-noise ratios, contrast ratios (CRs) and ADCs of the lesions were compared. Tumour cellularity was also measured and compared with ADCMIN values. RESULTS All 20 lesions were hyperintense on the DW MR images with high and standard b-values. Four additional lesions were revealed on high b-value, and all 24 lesions were more conspicuous at high b-value. SI, SNR and ADC values for the lesions were lower in the high b-value images than in the standard b-value images. The ADCMIN value at b = 3000 s mm(-2) was more significantly associated with tumour cellularity than that at b = 1000 s mm(-2). CR values were significantly higher in the high b-value images than in the standard b-value images. CONCLUSION DW imaging using high b-value may be beneficial for detecting additional, less prominent lesions and may improve the contrast between MB lesions and normal tissue. A stronger inverse correlation with tumour cellularity was identified using the ADCMIN values at high b-value. ADVANCES IN KNOWLEDGE This study demonstrates the superiority of high b-value DW imaging compared with standard b-value imaging for the detection of MB lesions, especially those with subtle foci.
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Affiliation(s)
- Chengkun Han
- 1 Department of Neuroradiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Long Zhao
- 2 Department of Nuclear Medicine & Minnan PET Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Shan Zhong
- 3 Department of Pathology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xiurong Wu
- 1 Department of Neuroradiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Jianfeng Guo
- 4 Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Xiongjie Zhuang
- 1 Department of Neuroradiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Haiwei Han
- 1 Department of Neuroradiology, The First Affiliated Hospital of Xiamen University, Xiamen, China
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Investigation of the location of atypical teratoid/rhabdoid tumor. Childs Nerv Syst 2015; 31:1305-11. [PMID: 25953096 DOI: 10.1007/s00381-015-2739-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 04/27/2015] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The location of a brain tumor is a fundamental characteristic, because various brain tumors develop in relatively specific locations. An atypical teratoid/rhabdoid tumor (AT/RT) is a highly age-specific tumor that occurs in infants and young children. However, AT/RTs develop in a variety of locations in the brain. This study aimed at uncovering the tumor location pattern of AT/RTs to enhance diagnoses. MATERIAL AND METHODS Neuroimages from 27 patients with a pathologically proven AT/RT were reviewed, and the specific tumor locations were described and categorized. The association of imaging characteristics and tumor location was analyzed. RESULTS The posterior fossa was the most frequent locations accounting for 19 patients (70%), followed by the diencephalon (four patients; 15%), cerebrum (three patients; 11%), and midbrain (one patient; 4%). In the posterior fossa, the superior medullary velum (SMV) and cerebellopontine angle (CPA) areas were the most common sites (eight patients each) and three patients had a tumor in the inferior medullary velum (IMV) region. AT/RTs in the SMV area had a significantly higher chance of no/minimal enhancement compared with tumors in other locations (P = 0.001) and a lower likelihood of leptomeningeal tumor seeding at presentation (P = 0.053). CONCLUSION The location spectrum of AT/RT follows a specific pattern, and some of the locations are linked with intriguing clinical characteristics. This information may not only help make correct preoperative diagnosis but also occasionally aid in postoperative pathological diagnosis.
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Ryzhova MV, Shishkina LV. [Molecular methods in diagnosis of poorly differentiated malignant brain tumors in children]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2015; 79:10-20. [PMID: 26146040 DOI: 10.17116/neiro201579210-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The histological diagnosis of malignant brain tumors in children is a complex process. In some cases, glioblastoma, primitive neuroectodermal tumor of the central nervous system, and atypical teratoid/rhabdoid tumor have a histological type similar to that of small blue round cell malignant tumor. Despite the similar histology, biological properties and approaches to treatment, these neoplasms are completely different and require their own treatment protocols. We retrospectively reviewed the most malignant types of childhood tumors and analyzed our own experience to propose a diagnostic algorithm for intracerebral small blue round cell malignant tumors in children based on the use of immunohistochemistry and fluorescence in situ hybridization.
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Affiliation(s)
- M V Ryzhova
- Burdenko Neurosurgical Institute, Moscow, Russia
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Atypical teratoid/rhabdoid tumor (ATRT) arising from the 3rd cranial nerve in infants: a clinical-radiological entity? J Neurooncol 2015; 124:175-83. [PMID: 26148473 DOI: 10.1007/s11060-015-1787-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 04/20/2015] [Indexed: 10/23/2022]
Abstract
Atypical teratoid/rhabdoid tumor (ATRT) is a rare embryonal tumor of the central nervous system with preponderance in very young children, the majority of whom are younger than 3 years of age at diagnosis. Historically, outcomes of this aggressive disease, even with extensive multimodal therapy, have been dismal. Recent improvements have come from therapies directed exclusively towards ATRT, but misdiagnosis or delays in the correct diagnosis lead to significantly worse survival rates. ATRTs most commonly occur supratentorially but have been described in virtually all central nervous system locations, including the cerebellopontine angle cistern, meninges, and spinal canal, and extradural locations. ATRTs originating from cranial nerves are rare. Here, we describe three cases of solitary ATRT arising from the 3rd cranial nerve (CN III) or close to its origin in the midbrain, all of which presented in patients within 6 months of birth, with isolated unilateral oculomotor nerve palsy and strikingly similar magnetic resonance imaging (MRI) features. These MRI features include IV contrast enhancement, relative T2 hyposignal, and restricted water diffusion on apparent diffusion coefficient images, findings which are consistent with angiogenesis and high cellularity, and hence, suggestive of malignancy. We conclude that ATRT should be placed high on the differential diagnosis list when encountering a young infant presenting with isolated, unilateral 3rd nerve palsy and a small, solitary tumor arising from CN III that demonstrates malignant conventional and diffusion-weighted imaging features on MRI.
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Zhao RJ, Wu KY, Zhang JG, Ma YH, Kong LF. Primary Intracranial Atypical Teratoid/Rhabdoid Tumors: A Clinicopathologic and Neuroradiologic Study. J Child Neurol 2015; 30:1017-23. [PMID: 25323739 DOI: 10.1177/0883073814551795] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 08/26/2014] [Indexed: 11/16/2022]
Abstract
Atypical teratoid/rhabdoid tumors are rare malignant pediatric brain tumors. This study was performed to characterize the clinicopathologic and neuroradiologic characteristics of atypical teratoid/rhabdoid tumors from 8 patients, including 5 male and 3 female infants (median age, 67 months). Neuroimaging revealed bulky masses of heterogeneous intensity with inhomogeneous enhancement. Three cases were infratentorial and 5 were supratentorial. Histopathologically, the tumors were predominantly composed of rhabdoid cells and undifferentiated small cells, mixed with some spindle or epithelial components. The tumors displayed striking polyphenotypic immunoreactivity, including varying degrees of positivity for vimentin, epithelial membrane antigen, smooth-muscle actin, cytokeratin, glial fibrillary acidic protein, neurofilament protein, synaptophysin, and CD99, and immunonegativity for desmin, placental alkaline phosphatase, and INI-1. The median survival duration was 9.5 months (range, 1-15 months) despite aggressive therapy. These results suggest that atypical teratoid/rhabdoid tumors display distinct clinicopathologic characteristics and indicate a poor prognosis. Immunohistochemistry facilitates the appropriate diagnosis of these tumors.
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Affiliation(s)
- Rui-jiao Zhao
- Department of Pathology, The People's Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Kai-yan Wu
- Department of Pathology, The People's Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Jian-guo Zhang
- Department of Neurosurgery, The People's Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yi-hui Ma
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Ling-fei Kong
- Department of Pathology, The People's Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
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Mahdi Y, Kharmoum J, Alouan A, Elouarradi H, Elkhiyat I, Maher M, Benchrif MZ, Kili A, Daoudi R, Cherradi N. Primary atypical teratoid/rhabdoid tumor of the optic nerve: a rare entity in an exceptional location. Diagn Pathol 2015; 10:47. [PMID: 25934090 PMCID: PMC4416247 DOI: 10.1186/s13000-015-0284-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 04/22/2015] [Indexed: 11/27/2022] Open
Abstract
Atypical teratoid/rhabdoid tumors are rare and highly malignant central nervous system tumors. They have no specific radiological features and often present several histological components that make a problem in differential diagnosis with medulloblastoma and primitive neuroectodermal tumors. We present the case of a newborn girl complained of a gradual proptosis of the left eye secondary to an expansive lesional process of the optic nerve. The location at the optic nerve, reported only twice in the literature, and an exclusive rhabdoid appearance on biopsy added additional differential diagnosis problems. The proptosis worsened and the infant died few days after two cycles of chemotherapy. VIRTUAL SLIDES The virtual slides for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2037718783145212 .
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Affiliation(s)
- Youssef Mahdi
- Department of Pathology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
| | - Jinane Kharmoum
- Department of Pathology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
| | - Amal Alouan
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
- Department of Ophtamology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
| | - Hakima Elouarradi
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
- Department of Ophtamology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
| | - Iman Elkhiyat
- Department of Pathology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
| | - Mustapha Maher
- Department of Pathology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
| | - Moulay Zahid Benchrif
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
- Department of Ophtamology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
| | - Amina Kili
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
- Pediatric Hematology and Oncology Center, Ibn Sina University Hospital, Rabat, Morocco.
| | - Rajae Daoudi
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
- Department of Ophtamology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
| | - Nadia Cherradi
- Department of Pathology, Specialities Hospital, Ibn Sina University Hospital, Rabat, Morocco.
- Faculty of Medicine and Pharmacy, Mohammed V Souissi University, Rabat, Morocco.
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Sinha P, Ahmad M, Varghese A, Parekh T, Ismail A, Chakrabarty A, Tyagi A, Chumas P. Atypical teratoid rhabdoid tumour of the spine: report of a case and literature review. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2014; 24 Suppl 4:S472-84. [PMID: 25374299 DOI: 10.1007/s00586-014-3445-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Revised: 06/28/2014] [Accepted: 06/29/2014] [Indexed: 12/12/2022]
Abstract
Atypical teratoid rhabdoid tumour (ATRT) is a rare and highly aggressive malignant neoplasm of the central nervous system (CNS), which occurs predominantly in children less than 2 years of age. There are less than 50 cases described in adult. We report a case of primary spinal ATRT in a 65-year-old male who presented to us with cauda equina syndrome. To the best of our knowledge, our patient is the (1) second oldest patient to be diagnosed with ATRT and only the third case of adult spinal ATRT report in the literature; (2) first reported case of CNS ATRT occurring in a patient with non-rhabdoid renal cancer; (3) first adult patient of ATRT to present with cauda equina syndrome.
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Affiliation(s)
- Priyank Sinha
- Department of Neurosurgery, Leeds Teaching Hospitals NHS Trust, Leeds General Infirmary, Leeds, LS1 3EX, UK,
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Applicability of apparent diffusion coefficient ratios in preoperative diagnosis of common pediatric cerebellar tumors across two institutions. Neuroradiology 2014; 56:781-8. [DOI: 10.1007/s00234-014-1398-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 06/19/2014] [Indexed: 11/26/2022]
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Kralik SF, Taha A, Kamer AP, Cardinal JS, Seltman TA, Ho CY. Diffusion imaging for tumor grading of supratentorial brain tumors in the first year of life. AJNR Am J Neuroradiol 2014; 35:815-23. [PMID: 24200900 DOI: 10.3174/ajnr.a3757] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Supratentorial tumors in the first year of life are typically large and heterogeneous at presentation, making differentiation of these CNS neoplasms on pre-operative imaging difficult. We hypothesize that the ADC value can reliably differentiate high- versus low-grade supratentorial tumors in this patient population. MATERIALS AND METHODS A blinded review of ADC maps was performed on 19 patients with histologically proved supratentorial brain tumors diagnosed within the first year of life. Minimum ADC values obtained by region of interest from 2 neuroradiologists were averaged and compared with World Health Organization tumor grade. ADC values for the entire tumor were also obtained by use of a semi-automated histogram method and compared with World Health Organization tumor grade. Data were analyzed by use of Spearman ρ and Student t test, with a value of P < .05 considered statistically significant. RESULTS For the manual ADC values, a significant negative correlation was found between the mean minimum ADC and tumor grade (P = .0016). A significant difference was found between the mean minimum ADC of the low-grade (1.14 × 10(-3) mm(2)/s ± 0.30) and high-grade tumors (0.64 × 10(-3) mm(2)/s ± 0.28) (P = .0018). Likewise, the semi-automated method demonstrated a significant negative correlation between the lowest 5th (P = .0002) and 10th (P = .0009) percentile individual tumor ADC values and tumor grade, a significant difference between the mean 5th and 10th percentile ADC values of the low-grade and high-grade groups (P = .0028), and a significant positive correlation with values obtained by manual region-of-interest placement (P < .000001). CONCLUSIONS ADC maps can differentiate high- versus low-grade neoplasms for supratentorial tumors presenting in the first year of life, given the significant negative correlation between ADC values and tumor grade.
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Affiliation(s)
- S F Kralik
- From Indiana University School of Medicine, Department of Radiology and Imaging Sciences, Indianapolis, Indiana
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Pierce TT, Provenzale JM. Evaluation of apparent diffusion coefficient thresholds for diagnosis of medulloblastoma using diffusion-weighted imaging. Neuroradiol J 2014; 27:63-74. [PMID: 24571835 DOI: 10.15274/nrj-2014-10007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 12/16/2013] [Indexed: 02/04/2023] Open
Abstract
We assess a diffusion-weighted imaging (DWI) analysis technique as a potential basis for computer-aided diagnosis (CAD) of pediatric posterior fossa tumors. A retrospective medical record search identified 103 children (mean age: 87 months) with posterior fossa tumors having a total of 126 preoperative MR scans with DWI. The minimum ADC (ADCmin) and normalized ADC (nADC) values [ratio of ADCmin values in tumor compared to normal tissue] were measured by a single observer blinded to diagnosis. Receiver operating characteristic (ROC) curves were generated to determine the optimal threshold for which the nADC and ADCmin values would predict tumor histology. Inter-rater reliability for predicting tumor type was evaluated using values measured by two additional observers. At histology, ten tumor types were identified, with astrocytoma (n=50), medulloblastoma (n=33), and ependymoma (n=9) accounting for 89%. Mean ADCmin (0.54 × 10(-3) mm(2)/s) and nADC (0.70) were lowest for medulloblastoma. Mean ADCmin (1.28 × 10(-3) mm(2)/s) and nADC (1.64) were highest for astrocytoma. For the ROC analysis, the area under the curve when discriminating medulloblastoma from other tumors using nADC was 0.939 and 0.965 when using ADCmin. The optimal ADCmin threshold was 0.66 × 10(-3) mm(2)/s, which yielded an 86% positive predictive value, 97% negative predictive value, and 93% accuracy. Inter-observer variability was very low, with near perfect agreement among all observers in predicting medulloblastoma. Our data indicate that both ADCmin and nADC could serve as the basis for a CAD program to distinguish medulloblastoma from other posterior fossa tumors with a high degree of accuracy.
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Affiliation(s)
| | - James M Provenzale
- Department of Radiology, Duke University Medical Center; Durham, NC, USA, - Departments of Radiology and Imaging Sciences, Oncology and Biomedical Engineering, Emory University School of Medicine; Atlanta, GA, USA
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Koral K, Zhang S, Gargan L, Moore W, Garvey B, Fiesta M, Seymour M, Yang L, Scott D, Choudhury N. Diffusion MRI improves the accuracy of preoperative diagnosis of common pediatric cerebellar tumors among reviewers with different experience levels. AJNR Am J Neuroradiol 2013; 34:2360-5. [PMID: 23788600 DOI: 10.3174/ajnr.a3596] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Although utility of diffusion MR imaging in the preoperative diagnosis of common pediatric cerebellar tumors is generally recognized, its added value has not been systematically studied previously. The purpose of this study was to evaluate the impact of diffusion MR imaging on the accuracy of preoperative diagnosis of common pediatric cerebellar tumors among reviewers with different experience levels. MATERIALS AND METHODS Review of the neuro-oncology data base yielded 96 patients whose preoperative brain MR imaging included both diffusion MR imaging (b = 1000 s/mm(2)) and ADC maps. There were 38 pilocytic astrocytomas, 33 medulloblastomas, 17 ependymomas, and 8 atypical teratoid/rhabdoid tumors. Six reviewers (4 residents, 2 neuroradiologists) evaluated the examinations. Two sessions were conducted with each reviewer, without and with diffusion MR imaging data on 2 separate days. The impact of diffusion MR imaging on accuracy of diagnoses was assessed. RESULTS In choosing the correct diagnosis of the 4 alternatives, performances of 5 of the 6 reviewers improved significantly with inclusion of the diffusion MR imaging data, from 63%-77% (P = .0003-.0233). The performance of 1 reviewer also improved, but the difference did not attain statistical significance (P = .1944). Inclusion of diffusion MR imaging data improved the likelihood of rendering a correct diagnosis (odds ratio = 3.16, 95% confidence interval = 2.07-4.00) over all tumor types. When embryonal tumors were regarded as a single group, the rate of correct diagnosis increased from 66%-83% with diffusion MR imaging data, and performances of all of the reviewers improved significantly (P = .0001-.05). The improvement in performances resulted from increased correct diagnoses of pilocytic astrocytomas, medulloblastomas, and atypical teratoid/rhabdoid tumors. There was no improvement in the correct diagnoses of ependymomas with inclusion of the diffusion MR imaging data. CONCLUSIONS Diffusion MR imaging improves accuracy of preoperative diagnosis of common pediatric cerebellar tumors significantly among reviewers with differing experience levels.
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Affiliation(s)
- K Koral
- Departments of Radiology, University of Texas Southwestern Medical Center and Children's Medical Center, Dallas, Texas
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MRI features of atypical teratoid/rhabdoid tumors in children. Pediatr Radiol 2013; 43:1001-8. [PMID: 23467756 DOI: 10.1007/s00247-013-2646-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 01/14/2013] [Accepted: 01/16/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND Atypical teratoid/rhabdoid tumors (AT/RTs) are rare, highly malignant tumors of the central nervous system, usually occurring in young children. OBJECTIVE To investigate the MRI features of AT/RT, with special emphasis on diffusion-weighted imaging (DWI) and MR spectroscopy (MRS). MATERIALS AND METHODS MRI findings of 11 children with AT/RT were reviewed retrospectively, including DWI in 9 AT/RT children and MRS in 6 children. RESULTS The neoplasms were infratentorial in 4 children and supratentorial in 5 children, both infra- and supratentorial in 1 child and multifocal in 1 child. AT/RT produced heterogeneous signal intensity from peripheral cysts in 7/11 (63%) and hemorrhage in 7/11 (63%). All lesions showed contrast enhancement of varying degrees. Seven (63%) had peritumoral edema. Nine (82%) were hyperintense on DWI with a mean ± SD ADC of 0.60 ± 0.13 × 10(-3) mm(2) s(-1). Six lesions (55%) exhibited elevated levels of choline and decreased NAA, and three had lipid peaks. CONCLUSIONS A childhood intracranial tumor with off-midline location, peripheral cystic components, hemorrhage, low ADC, and lipid peaks on MRS suggests AT/RT to be considered a differential diagnosis.
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Conventional and advanced MRI features of pediatric intracranial tumors: posterior fossa and suprasellar tumors. AJR Am J Roentgenol 2013; 200:1115-24. [PMID: 23617498 DOI: 10.2214/ajr.12.9725] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE In this article, we review the most common posterior fossa and suprasellar intracranial neoplasms in the pediatric population. We briefly discuss basic MRI concepts used in the initial evaluation of a pediatric brain tumor and then discuss sophisticated MRI techniques that give insight into the physiology and chemical makeup of these tumors to help the radiologist make a more specific diagnosis. CONCLUSION Diagnosis and treatment of pediatric CNS tumors necessitate a multi-disciplinary approach and require expertise and diligence of all parties involved. Imaging is an essential component has evolved greatly over the past decade. We are becoming better at making a preoperative diagnosis of that tumor type, detecting recurrence, and guiding surgical management to avoid injury to vital brain structures.
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Gimi B, Cederberg K, Derinkuyu B, Gargan L, Koral KM, Bowers DC, Koral K. Utility of apparent diffusion coefficient ratios in distinguishing common pediatric cerebellar tumors. Acad Radiol 2012; 19:794-800. [PMID: 22513110 DOI: 10.1016/j.acra.2012.03.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Revised: 02/28/2012] [Accepted: 03/02/2012] [Indexed: 11/25/2022]
Abstract
RATIONALE AND OBJECTIVES The aim of this study was to identify clinically useful tumor/normal brain apparent diffusion coefficient (ADC) ratios for distinguishing common pediatric cerebellar tumors. MATERIALS AND METHODS Review of medical records revealed 79 patients with cerebellar tumors who underwent preoperative magnetic resonance imaging, including diffusion-weighted imaging sequences, and surgery. There were 31 pilocytic astrocytomas, 27 medulloblastomas, 14 ependymomas, and seven atypical teratoid/rhabdoid tumors. ADC values were measured by placing regions of interest on the solid tumor and normal brain parenchyma by two reviewers. Tumor/normal brain ADC ratios were calculated. RESULTS Mean ADC values of the pilocytic astrocytomas were greater than those of ependymomas, whose mean ADC values were greater than those of medulloblastomas and atypical teratoid/rhabdoid tumors. Using a tumor/normal brain ADC ratio threshold of 1.70 to distinguish pilocytic astrocytomas from ependymomas, sensitivity of 92% and specificity of 79% were achieved. A tumor/normal brain ADC ratio threshold of 1.20 enabled the sorting of ependymomas from medulloblastomas with sensitivity of 93% and specificity of 88%. CONCLUSIONS Tumor/normal brain ADC ratios allow the distinguishing of common pediatric cerebellar tumors.
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Mondal D, Jana M, Julka PK. Supratentorial atypical teratoid rhabdoid tumor: An uncommon childhood tumor. J Pediatr Neurosci 2011; 6:90-1. [PMID: 21977104 PMCID: PMC3173931 DOI: 10.4103/1817-1745.84423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Dodul Mondal
- Department of Radiation Oncology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
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Poretti A, Meoded A, Huisman TAGM. Neuroimaging of pediatric posterior fossa tumors including review of the literature. J Magn Reson Imaging 2011; 35:32-47. [PMID: 21989968 DOI: 10.1002/jmri.22722] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 06/23/2011] [Indexed: 01/06/2023] Open
Abstract
Conventional, anatomical MRI is an essential tool for diagnosis and evaluation of location, quality, and extent of posterior fossa tumors, but offers limited information regarding tumor grade and type. Advanced MRI techniques such as diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) may improve the specific diagnosis of brain tumors in the posterior fossa in children. In this review the conventional neuroimaging findings, as well as the DWI, and DTI characteristics of common pediatric posterior fossa tumors are discussed and summarized.
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Affiliation(s)
- Andrea Poretti
- Division of Pediatric Radiology, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Discrimination of paediatric brain tumours using apparent diffusion coefficient histograms. Eur Radiol 2011; 22:447-57. [PMID: 21918916 DOI: 10.1007/s00330-011-2255-7] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 07/08/2011] [Accepted: 07/28/2011] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To determine if histograms of apparent diffusion coefficients (ADC) can be used to differentiate paediatric brain tumours. METHODS Imaging of histologically confirmed tumours with pre-operative ADC maps were reviewed (54 cases, 32 male, mean age 6.1 years; range 0.1-15.8 years) comprising 6 groups. Whole tumour ADC histograms were calculated; normalised for volume. Stepwise logistic regression analysis was used to differentiate tumour types using histogram metrics, initially for all groups and then for specific subsets. RESULTS All 6 groups (5 dysembryoplastic neuroectodermal tumours, 22 primitive neuroectodermal tumours (PNET), 5 ependymomas, 7 choroid plexus papillomas, 4 atypical teratoid rhabdoid tumours (ATRT) and 9 juvenile pilocytic astrocytomas (JPA)) were compared. 74% (40/54) were correctly classified using logistic regression of ADC histogram parameters. In the analysis of posterior fossa tumours, 80% of ependymomas, 100% of astrocytomas and 94% of PNET-medulloblastoma were classified correctly. All PNETs were discriminated from ATRTs (22 PNET and 4 supratentorial ATRTs) (100%). CONCLUSIONS ADC histograms are useful in differentiating paediatric brain tumours, in particular, the common posterior fossa tumours of childhood. PNETs were differentiated from supratentorial ATRTs, in all cases, which has important implications in terms of clinical management. Key Points • MR based apparent diffusion coefficient histograms can help differentiate paediatric brain tumours • ADC histogram parameters correctly classified the great majority of posterior fossa tumours.
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Heiss WD, Raab P, Lanfermann H. Multimodality assessment of brain tumors and tumor recurrence. J Nucl Med 2011; 52:1585-600. [PMID: 21840931 DOI: 10.2967/jnumed.110.084210] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Neuroimaging plays a significant role in the diagnosis of intracranial tumors, especially brain gliomas, and must consist of an assessment of location and extent of the tumor and of its biologic activity. Therefore, morphologic imaging modalities and functional, metabolic, or molecular imaging modalities should be combined for primary diagnosis and for following the course and evaluating therapeutic effects. MRI is the gold standard for providing detailed morphologic information and can supply some additional insights into metabolism (MR spectroscopy) and perfusion (perfusion-weighted imaging) but still has limitations in identifying tumor grade, invasive growth into neighboring tissue, and treatment-induced changes, as well as recurrences. These insights can be obtained by various PET modalities, including imaging of glucose metabolism, amino acid uptake, nucleoside uptake, and hypoxia. Diagnostic accuracy can benefit from coregistration of PET results and MRI, combining the high-resolution morphologic images with the biologic information. These procedures are optimized by the newly developed combination of PET and MRI modalities, permitting the simultaneous assessment of morphologic, functional, metabolic, and molecular information on the human brain.
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