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Khan SJ, Anum F, Vishal F, Lee M, Sheikh S, Zaidi SAT, Murtaza SF, Kumar V. A Rare Presentation of Colon Carcinoma Metastasis Within a Meningioma: A Case Report and Literature Review. Cureus 2023; 15:e45764. [PMID: 37872930 PMCID: PMC10590650 DOI: 10.7759/cureus.45764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2023] [Indexed: 10/25/2023] Open
Abstract
Colon carcinoma with brain metastasis is a rare presentation. This presentation is more unusual and unique when the single brain metastatic lesion has two different types of tumors. This rare phenomenon is known as a tumor-to-tumor metastasis. A meningioma usually hosts lung and breast cancers within it. However, colon carcinoma metastasis into meningiomas has rarely been reported. An 86-year-old man presented with neurological symptoms and was found to have a brain mass. The search for primary lesions was negative as the chest, abdomen, and pelvis CT scan was insignificant. When the brain lesion's pathology revealed a composite mass of adenocarcinoma and a meningioma, further investigation with a colonoscopy revealed a colonic mass as the primary metastasis lesion. This unique presentation and pathology emphasize the importance of a comprehensive investigative approach to finding the primary lesions and consideration of such a phenomenon in these lesions.
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Affiliation(s)
- Salman J Khan
- Public Health, University of Massachusetts Amherst, Amherst, USA
- Hematology and Oncology, Mayo Clinic, Jacksonville, USA
| | - Fnu Anum
- Internal Medicine, Peoples University of Medical & Health Science for Women, Nawabshah, PAK
| | - Fnu Vishal
- Infectious Diseases, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
- Infectious Diseases, Rochester Regional Health, Rochester, USA
| | - Michael Lee
- Internal Medicine, Jefferson Health, Philadelphia, USA
| | - Seemab Sheikh
- Internal Medicine, Community Health Center, New Britain, USA
- Internal Medicine, Monmouth Medical Center, Long Branch, USA
| | - Syed Asjad Tauheed Zaidi
- Hematology and Oncology, Mayo Clinic, Jacksonville, USA
- Medicine, Shalamar Medical and Dental College, Lahore, PAK
| | - Syeda Fatima Murtaza
- Medicine, Mayo Clinic, Jacksonville, USA
- Medicine, Allama Iqbal Medical College, Lahore, PAK
| | - Vinod Kumar
- Hematology and Oncology, Mayo Clinic, Jacksonville, USA
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2
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Joe WH, Lee CY, Kim CH, Ko YS, Kim SP, Kwon SM. Breast Cancer to Meningioma: A Rare Case of Tumor-to-Tumor Metastasis. Brain Tumor Res Treat 2023; 11:73-78. [PMID: 36762811 PMCID: PMC9911711 DOI: 10.14791/btrt.2022.0042] [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: 12/07/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 02/05/2023] Open
Abstract
Tumor-to-tumor metastasis (TTM) is defined as the hematogenous metastasis within a primary host tumor from a donor neoplasm. Since there is insufficient evidence regarding the pathophysiology, clinical course, and management of TTM, there are no precise guidelines for its management. A 73-year-old female patient diagnosed with breast cancer was found to have convexity meningioma. Since the size of tumor and peritumoral brain edema increased during follow-up period, the meningioma was treated with surgical resection. Postoperatively, histopathologic examination confirmed metastasis of invasive ductal carcinoma within a secretory meningioma. The final diagnosis was TTM of breast cancer in meningioma. Here, we report a rare case of intra-meningioma metastasis and a review of literature to provide a better understanding of this rare phenomenon.
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Affiliation(s)
- Woo Hyeong Joe
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Chang-Young Lee
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Chang-Hyun Kim
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Young San Ko
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Sang Pyo Kim
- Department of Pathology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Sae Min Kwon
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
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3
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Jie D, Liu Z, He W, Wang S, Teng H, Xu J. Clinical features, radiological findings, and prognostic factors for primary intracranial chordoid meningioma. Front Neurol 2022; 13:1002088. [PMID: 36438949 PMCID: PMC9684187 DOI: 10.3389/fneur.2022.1002088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/10/2022] [Indexed: 04/09/2024] Open
Abstract
OBJECTIVES Chordoid meningioma (CM) is an infrequent histologic subtype of meningiomas. Owing to its low occurrence, this subtype has been rarely described. Our subject was to explore the clinical features, radiological characteristics, and prognostic factors of primary intracranial chordoid meningioma. METHODS We reviewed the medical records and collected follow-up information of 34 cases who had been surgically treated and histologically diagnosed with CM at the Department of Neurosurgery, West-China Hospital of Sichuan University, from January 2009 to December 2021. RESULTS Among all 7,950 meningioma cases, the proportion of primary intracranial CM was 0.43% (34/7,950). The median diagnosis age was 47 (ranging from 12 to 74) and the gender ratio (male to female) was 2.1:1. For radiological features, heterogeneous enhancement, skull base, and ventricular localization, cystic degeneration and dural tail sign were common in CM cases. In treatment, gross total resection (GTR) was achieved in 22/34 cases (64.7%) and subtotal resection (STR) was achieved in 12/34 cases (35.3%). Further, 11/34 patients (32.4%) had received postoperative adjuvant radiotherapy (RT). The follow-up duration ranged from 4 to 157 months after operation. The progression rate was 20.7% (6/29) and the median of PFS was 38 months. By survival analysis, accepting adjuvant radiotherapy and achieving GTR were correlated with longer progression-free survival for prognosis. CONCLUSION CM is a rare subtype of meningiomas. In our series, it mainly involved adults and did not show a predilection for women compared with meningiomas in general. For a better prognosis, gross total resection and postoperative adjuvant radiotherapy are recommended. Nevertheless, due to the restriction of the series sample, patients lost for follow-up and inherent biases of a retrospective study, more cases and a shorter follow-up duration are needed for better management of chordoid meningioma.
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Affiliation(s)
- Danyang Jie
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Zhiyong Liu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
| | - Wenbo He
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Shumin Wang
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Haibo Teng
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Jianguo Xu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, China
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Matsusue E, Inoue C, Tabuchi S, Yoshioka H, Nagao Y, Matsumoto K, Nakamura K, Fujii S. Utility of 3T single-voxel proton MR spectroscopy for differentiating intracranial meningiomas from intracranial enhanced mass lesions. Acta Radiol Open 2021; 10:20584601211009472. [PMID: 34211737 PMCID: PMC8215334 DOI: 10.1177/20584601211009472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/23/2021] [Indexed: 02/03/2023] Open
Abstract
Background Proton magnetic resonance spectroscopy (MRS) provides structural and
metabolic information that is useful for the diagnosis of meningiomas with
atypical radiological appearance. However, the metabolite that should be
prioritized for the diagnosis of meningiomas has not been established. Purpose To evaluate the differences between the metabolic peaks of meningiomas and
other intracranial enhanced mass lesions (non-meningiomas) using MR
spectroscopy in short echo time (TE) spectra and the most useful metabolic
peak for discriminating between the groups. Material and Methods The study involved 9 meningiomas, 22 non-meningiomas, intracranial enhancing
tumors and abscesses, and 15 normal controls. The ranking of the peak at
3.8 ppm, peak at 3.8 ppm/Creatine (Cr), β-γ Glutamine-Glutamate (bgGlx)/Cr,
N-acetyl compounds (NACs)/Cr, choline (Cho)/Cr, lipid and/or lactate
(Lip-Lac) at 1.3 ppm/Cr, and the presence of alanine (Ala) were derived. The
metabolic peaks were compared using the Mann-Whitney U test. ROC analysis
was used to determine the cut-off values for differentiating meningiomas
from non-meningiomas using statistically significant metabolic peaks. Results The ranking of the peak at 3.8 ppm among all the peaks, peak at 3.8 ppm/Cr,
bgGlx/Cr, Lip-Lac/Cr, and the presence of Ala discriminated meningiomas from
non-meningiomas with moderate to high accuracy. The highest accuracy was
96.9% at a threshold value of 3 for the rank of the peak at 3.8 ppm. Conclusion A distinct elevated peak at 3.8 ppm, ranked among the top three highest
peaks, allowed the detection of meningiomas.
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Affiliation(s)
- Eiji Matsusue
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Chie Inoue
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Sadaharu Tabuchi
- Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Hiroki Yoshioka
- Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Yuichiro Nagao
- Department of Neurosurgery, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Kensuke Matsumoto
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Kazuhiko Nakamura
- Department of Radiology, Tottori Prefectural Central Hospital, Tottori, Japan
| | - Shinya Fujii
- Division of Radiology, Department of Multidisciplinary Internal Medicine, Tottori University, Tottori, Japan
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Lin MC, Li CZ, Hsieh CC, Hong KT, Lin BJ, Lin C, Tsai WC, Lee CH, Lee MG, Chung TT, Tang CT, Ju DT, Ma HI, Liu MY, Chen YH, Hueng DY. Preoperative grading of intracranial meningioma by magnetic resonance spectroscopy (1H-MRS). PLoS One 2018; 13:e0207612. [PMID: 30452483 PMCID: PMC6242682 DOI: 10.1371/journal.pone.0207612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 11/02/2018] [Indexed: 11/30/2022] Open
Abstract
Although proton magnetic resonance spectroscopy (1H-MRS) is a common method for the evaluation of intracranial meningiomas, controversy exists regarding which parameter of 1H-MRS best predicts the histopathological grade of an intracranial meningioma. In this study, we evaluated the results of pre-operative 1H-MRS to identify predictive factors for high-grade intracranial meningioma. Thirteen patients with World Health Organization (WHO) grade II-III meningioma (confirmed by pathology) were defined as high-grade; twenty-two patients with WHO grade I meningioma were defined as low-grade. All patients were evaluated by 1H-MRS before surgery. The relationships between the ratios of metabolites (N-acetylaspartate [NAA], creatine [Cr], and choline [Cho]) and the diagnosis of high-grade meningioma were analyzed. According to Mann-Whitney U test analysis, the Cho/NAA ratio in cases of high-grade meningioma was significantly higher than in cases of low-grade meningioma (6.34 ± 7.90 vs. 1.58 ± 0.77, p<0.05); however, there were no differences in age, Cho/Cr, or NAA/Cr. According to conditional inference tree analysis, the optimal cut-off point for the Cho/NAA ration between high-grade and low-grade meningioma was 2.409 (sensitivity = 61.54%; specificity = 86.36%). This analysis of pre-operative 1H-MRS metabolite ratio demonstrated that the Cho/NAA ratio may provide a simple and practical predictive value for high-grade intracranial meningiomas, and may aid neurosurgeons in efforts to design an appropriate surgical plan and treatment strategy before surgery.
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Affiliation(s)
- Meng-Chi Lin
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Surgery, Zuoying Branch, Kaohsiung Arm Force General Hospital, Kaohsiung, Taiwan
| | - Chiao-Zhu Li
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Surgery, Kaohsiung Arm Force General Hospital, Kaohsiung, Taiwan
| | - Chih-Chuan Hsieh
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Surgery, Zuoying Branch, Kaohsiung Arm Force General Hospital, Kaohsiung, Taiwan
| | - Kun-Ting Hong
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Bon-Jour Lin
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chin Lin
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Wen-Chiuan Tsai
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chiao-Hua Lee
- Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Man-Gang Lee
- Department of Surgery, Kaohsiung Arm Force General Hospital, Kaohsiung, Taiwan
| | - Tzu-Tsao Chung
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chi-Tun Tang
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Da-Tong Ju
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-I Ma
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ming-Ying Liu
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yuan-Hao Chen
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Dueng-Yuan Hueng
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- * E-mail:
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6
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Isobe T, Yamamoto T, Akutsu H, Shiigai M, Shibata Y, Takada K, Masumoto T, Anno I, Matsumura A. Preliminary study for differential diagnosis of intracranial tumors using in vivo quantitative proton MR spectroscopy with correction for T2 relaxation time. Radiography (Lond) 2015. [DOI: 10.1016/j.radi.2014.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Tumor-to-tumor metastasis: Breast carcinoma to meningioma. J Clin Neurosci 2015; 22:268-74. [DOI: 10.1016/j.jocn.2014.07.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Accepted: 07/02/2014] [Indexed: 12/15/2022]
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8
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Di Ieva A, Laiq S, Nejad R, Schmitz EM, Fathalla H, Karamchandani J, Munoz DG, Cusimano MD. Chordoid meningiomas: Incidence and clinicopathological features of a case series over 18 years. Neuropathology 2014; 35:137-47. [DOI: 10.1111/neup.12174] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 09/14/2014] [Accepted: 09/15/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Antonio Di Ieva
- Department of Surgery; Division of Neurosurgery; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - Simin Laiq
- Department of Laboratory Medicine and Pathology; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - Romina Nejad
- Department of Surgery; Division of Neurosurgery; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - Erika M. Schmitz
- Department of Surgery; Division of Neurosurgery; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - Hussein Fathalla
- Department of Surgery; Division of Neurosurgery; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - Jason Karamchandani
- Department of Laboratory Medicine and Pathology; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - David G. Munoz
- Department of Laboratory Medicine and Pathology; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
| | - Michael D. Cusimano
- Department of Surgery; Division of Neurosurgery; St. Michael's Hospital; University of Toronto; Toronto Ontario Canada
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9
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Tan LA, Boco T, Johnson AK, Rivas FF, Ahmed S, Byrd SE, Byrne RW. Magnetic resonance imaging characteristics of typical and atypical/anaplastic meningiomas - Case series and literature review. Br J Neurosurg 2014; 29:77-81. [PMID: 25221967 DOI: 10.3109/02688697.2014.957647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The histologic grades of meningiomas have a significant impact on the risk of recurrence, prognosis, and the need for adjuvant treatment such as radiation therapy. The purpose of this study is to investigate the magnetic resonance imaging (MRI) characteristics of typical and atypical/anaplastic meningiomas. METHODS The medical records of 32 consecutive patients who underwent meningioma resections between April 2004 and November 2006 were retrospectively reviewed. Preoperative MR studies were reviewed by board-certified neuroradiologists. Both univariate and multivariate analyses were used to analyze the MR characteristics of the typical and atypical/anaplastic meningiomas. A review of pertinent literature was also conducted. RESULTS Thirty-two patients were identified during the study period. Histopathologic examination of the surgical specimens revealed 27 (84.4% - Group I) typical meningiomas and 5 (15.6% - Group 2) atypical/anaplastic meningiomas. The chi-square test showed that restricted diffusion was much more likely to be present in Group 2 (p < 0.01), and the choline-to-creatinine (Cho/Cr) ratio was significantly higher in Group 2 (8.8 vs. 5.1, p = 0.01). The multivariate analysis confirmed that the atypical/anaplastic group is much more likely to have restricted diffusion (p = 0.02) and higher Cho/Cr ratios (p = 0.03). CONCLUSION Meningiomas with restricted diffusion and higher Cho/Cr ratio on MR spectroscopy are more likely to be atypical/anaplastic types. Preoperative MRI utilizing these sequences can provide important information which can be valuable to counsel patients regarding prognosis, risk of recurrence and the need for adjuvant radiation in addition to surgical resection.
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Affiliation(s)
- Lee A Tan
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
| | - Tibor Boco
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
| | - Andrew K Johnson
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
| | - Francisco F Rivas
- b Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center , Chicago , IL , USA
| | - Saud Ahmed
- c Rush Medical College , Chicago , IL , USA
| | - Sharon E Byrd
- b Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center , Chicago , IL , USA
| | - Richard W Byrne
- a Departments of Neurosurgery , Rush University Medical Center , Chicago , IL , USA
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Munley MT, Kagadis GC, McGee KP, Kirov AS, Jang S, Mutic S, Jeraj R, Xing L, Bourland JD. An introduction to molecular imaging in radiation oncology: a report by the AAPM Working Group on Molecular Imaging in Radiation Oncology (WGMIR). Med Phys 2014; 40:101501. [PMID: 24089890 DOI: 10.1118/1.4819818] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Molecular imaging is the direct or indirect noninvasive monitoring and recording of the spatial and temporal distribution of in vivo molecular, genetic, and/or cellular processes for biochemical, biological, diagnostic, or therapeutic applications. Molecular images that indicate the presence of malignancy can be acquired using optical, ultrasonic, radiologic, radionuclide, and magnetic resonance techniques. For the radiation oncology physicist in particular, these methods and their roles in molecular imaging of oncologic processes are reviewed with respect to their physical bases and imaging characteristics, including signal intensity, spatial scale, and spatial resolution. Relevant molecular terminology is defined as an educational assist. Current and future clinical applications in oncologic diagnosis and treatment are discussed. National initiatives for the development of basic science and clinical molecular imaging techniques and expertise are reviewed, illustrating research opportunities in as well as the importance of this growing field.
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Affiliation(s)
- Michael T Munley
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
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Differential diagnosis of intracranial meningiomas based on magnetic resonance spectroscopy. Neurol Neurochir Pol 2013; 47:247-55. [PMID: 23821422 DOI: 10.5114/ninp.2013.32998] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND PURPOSE To determine in vivo magnetic resonance spectroscopy (MRS) characteristics of intracranial meningiomas and to assess MRS reliability in meningioma grading and discrimination from tumours of similar radiological appearance, such as lymphomas, schwannomas and haemangiopericytomas. MATERIAL AND METHODS Analysis of spectra of 14 patients with meningiomas, 6 with schwannomas, 2 with lymphomas, 2 with haemangiopericytomas and 17 control spectra taken from healthy hemispheres. RESULTS All the patients with meningiomas had a high Cho signal (long TE). There were very low signals of Naa and Cr in the spectra of 10 patients. A reversed Ala doublet was seen only in 2 cases. Four patients had a negative Lac signal, whereas 3 had high Lac-Lip spectra. Twelve spectra showed high Cho signals (short TE). In one case the Cho signal was extremely low. All spectra displayed a very low Cr signal, but high Glx and Lac-Lip signals. Ala presence was found only in 3 patients. The mean Cho/Cr ratio (PRESS) was 5.97 (1.12 in normal brain, p < 0.05). Lac-Lip was present in all the meningiomas (STEAM). The Ala signal was seen only in 2 spectra with long TE and in 3 sequences of the short TE sequences. There were both β/γ-Glx and α-Glx/glutathione signals in all 14 meningiomas. CONCLUSIONS MRS is unable to discriminate low and high grade meningiomas. The method seems to be helpful in discriminating lymphomas (absent Glx signal), schwannomas (mI signal in the short TE sequences) and haemangiopericytomas (presence of mI band) from meningiomas.
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12
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Gu T, Ma XX, Xu YH, Xiu JJ, Li CF. Metabolite concentration ratios in thalami of patients with migraine and trigeminal neuralgia measured with1H-MRS. Neurol Res 2013; 30:229-33. [PMID: 17848209 DOI: 10.1179/016164107x235473] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVE To investigate the metabolite concentration ratios including N-acetylaspartate (NAA), choline-containing compounds (Cho) and creatine plus phosphocreatine (Cr) in thalami of patients with migraine without aura, patients with trigeminal neuralgia and healthy comparison subjects using multi-voxel proton magnetic resonance spectroscopy (1H-MRS). METHODS 1H-MRS was performed with a 3.0 T MR system on the thalamus bilaterally in 20 patients with migraine without aura, 16 patients with trigeminal neuralgia and 14 healthy control subjects. RESULTS In the patients with trigeminal neuralgia, metabolite concentration ratios except for Cho/Cr in thalami were different from those of healthy subjects (p>0.05). In migraine group, only NAA/Cho is low in the left thalamus (p>0.05). Comparing the metabolite concentration ratios of affected and contralateral sides in migraine and trigeminal neuralgia groups, only NAA/Cr showed a significant difference (p>0.05). CONCLUSION It was proved that migraine and trigeminal neuralgia seemed to be associated with an abnormal balance of the neural activity in the thalamus using 1H-MRS. There was some significant difference between metabolite concentration ratios in two diseases. 1H-MRS may serve as a useful non-invasive tool for evaluating thalamic neural activity and therapy effect in clinical performance of patients with migraine without aura.
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Affiliation(s)
- Tao Gu
- Department of Radiology, Qilu Hospital of Shandong University, Jinan 250012, China.
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14
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Sawlani V, Taylor R, Rowley K, Redfern R, Martin J, Poptani H. Magnetic Resonance Spectroscopy for Differentiating Pseudo-Progression from True Progression in GBM on Concurrent Chemoradiotherapy. Neuroradiol J 2012; 25:575-86. [PMID: 24029093 DOI: 10.1177/197140091202500511] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 08/20/2012] [Indexed: 11/16/2022] Open
Abstract
Neoadjuvant chemo-radiation therapy including temozolomide is commonly used for the treatment of gliomas. However, increased lesion size and contrast enhancement are frequently observed following this therapy and this appearance is termed as 'pseudo-progression'. Since conventional imaging is unable to differentiate pseudo-progression from tumour recurrence, we evaluated the utility of MR spectroscopy (MRS) to differentiate these two pathological entities. Longitudinal MRI and MRS studies prior to and within four months post chemo-radiation therapy including diffusion-weighted imaging and single voxel spectroscopy (short and intermediate echo) were performed in 62 glioblastoma (GBM) patients undergoing chemo-radiation therapy. Clinical follow-up demonstrated four cases of pseudo-progression. In this study, results from these four cases and a known case of tumour recurrence are reported. Metabolite ratios and presence or absence of lipids at 1.3 ppm were used to differentiate between pseudo-progression and tumour recurrence. All four cases of pseudo-progression demonstrated elevated lipid signals on MRS. Additionally, an absence of choline or a low choline/NAA ratio was also observed. In comparison, the patient with tumour recurrence showed lower lipid signals and a high choline/NAA ratio. The presence of elevated lipid signals along with low choline/NAA ratios can aid in differentiation of pseudo-progression from tumour recurrence.
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Affiliation(s)
- V Sawlani
- Radiology Department, Morriston Hospital; Swansea, United Kingdom -
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Clinical characteristics of meningiomas assessed by ¹¹C-methionine and ¹⁸F-fluorodeoxyglucose positron-emission tomography. J Neurooncol 2011; 107:379-86. [PMID: 22089887 DOI: 10.1007/s11060-011-0759-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 11/01/2011] [Indexed: 10/15/2022]
Abstract
The clinical course of meningioma varies from case to case, despite similar characteristics on magnetic resonance (MR) imaging. Functional imaging including (11)C-methionine and (18)F-fluorodeoxyglucose (FDG) positron-emission tomography (PET) has been widely studied for noninvasive preoperative evaluation of brain tumors. However, few reports have examined correlations between meningiomas and findings on (11)C-methionine and FDG PET. The objective of this study was to clarify the relationship between tumor characteristics and (11)C-methionine and FDG uptake in meningiomas. For 68 meningiomas in 51 cases, (11)C-methionine uptake was evaluated by measuring both mean and maximum tumor/normal (T/N) ratio for the whole area of the tumors. FDG uptake in 44 of those meningiomas was also analyzed. Tumor size was measured volumetrically, and tumor-doubling time was estimated. Histopathological evaluation was performed in 19 surgical cases. Mean and maximum T/N ratios of (11)C-methionine PET were significantly higher in skull-base lesions than in non-skull-base lesions. Correlations of mean and maximum T/N ratio of (11)C-methionine PET with tumor-doubling time, MIB-1 labeling index, microvessel density and World Health Organization grading were not significant. Mean T/N ratio of (11)C-methionine PET correlated significantly with tumor volume according to logarithm regression modeling (P < 0.0001, R = 0.544). However, mean and maximum T/N ratio of FDG-PET correlated with none of the tumor characteristics described above. These results suggest that (11)C-methionine uptake correlates with tumor volume, but not with tumor aggressiveness.
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New pathology classification, imagery techniques and prospective trials for meningiomas: the future looks bright. Curr Opin Neurol 2011; 23:563-70. [PMID: 20885321 DOI: 10.1097/wco.0b013e328340441e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE OF REVIEW Advances in functional and metabolic imaging have been added to the diagnostic armamentarium for meningioma. New prospective trials have been initiated, and it is foreseen that American Society of Clinical Oncology evidence-level II will be soon available for this brain tumor. This review will focus on recent advances in radiology and their significance for clinical care. The new WHO classification will be detailed. RECENT FINDINGS Brain invasion is an important criterion in the 2007 WHO classification for atypical meningioma. Apparent diffusion coefficient values on MRI observed with grade II and grade III meningiomas are significantly decreased when compared to benign tumors. [F]fluorodeoxyglucose PET may also predict tumor grade and tumor recurrence. Radio-labeled amino acid PET may be used to delineate target volume for radiotherapy planning. Stereotactic biopsy guidance and functional therapy monitoring could be foreseen using PET-MRI. One phase II study is assessing the benefit of dose escalation for nonbenign meningioma and another evaluates the therapeutic strategy of observation, standard- and high-dose radiotherapy for low-risk, intermediate-risk and high-risk patients. SUMMARY The use of functional MRI, with or without PET imaging, may be useful in assessing the potential clinical outcome of meningioma. Various therapeutic strategies, including observation and high-dose radiotherapy, are evaluated in two ongoing phase II studies.
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On the relevance of automatically selected single-voxel MRS and multimodal MRI and MRSI features for brain tumour differentiation. Comput Biol Med 2011; 41:87-97. [DOI: 10.1016/j.compbiomed.2010.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 09/10/2010] [Accepted: 12/15/2010] [Indexed: 11/24/2022]
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Pediatric meningioma: current approaches and future direction. J Neurooncol 2011; 104:1-10. [DOI: 10.1007/s11060-010-0503-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2010] [Accepted: 12/13/2010] [Indexed: 01/09/2023]
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Chernov MF, Kasuya H, Nakaya K, Kato K, Ono Y, Yoshida S, Muragaki Y, Suzuki T, Iseki H, Kubo O, Hori T, Okada Y, Takakura K. ¹H-MRS of intracranial meningiomas: what it can add to known clinical and MRI predictors of the histopathological and biological characteristics of the tumor? Clin Neurol Neurosurg 2010; 113:202-12. [PMID: 21144647 DOI: 10.1016/j.clineuro.2010.11.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2009] [Revised: 11/02/2010] [Accepted: 11/11/2010] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The main goal of the present study was evaluation of proton magnetic resonance spectroscopy (¹H-MRS) in diagnosis of histopathologically aggressive intracranial meningiomas. METHODS Single-voxel ¹H-MRS of 100 intracranial meningiomas was performed before their surgical resection. Investigated metabolites included mobile lipids, lactate, alanine, N-acetylaspartate (NAA), and choline-containing compounds (Cho). According to criteria of World Health Organization (WHO) 82 meningiomas were assigned histopathological grade I, 11 grade II, and 7 grade III. The MIB-1 index varied from 0% to 27.3% (median, 1.6%). In 43 cases tight adhesion of the tumor to the pia mater or brain tissue was macroscopically identified at surgery. The consistency of 49 meningiomas was characterized as soft, 26 as hard, and 25 as mixed. RESULTS No one metabolic parameter had statistically significant association with histopathological grade and subtype, invasive growth, and consistency of meningioma. Univariate statistical analysis revealed greater ¹H-MRS-detected Cho content (P=0.0444) and lower normalized NAA/Cho ratio (P=0.0203) in tumors with MIB-1 index 5% and more. However, both parameters lost their statistical significance during evaluation in the multivariate model along with other clinical and radiological variables. It was revealed that non-benign histopathology of meningioma (WHO grade II/III) is mainly predicted by irregular shape (P=0.0076) and large size (P=0.0316), increased proliferative activity by irregular shape (P=0.0056), and macroscopically invasive growth by prominent peritumoral edema (P=0.0021). CONCLUSION While ¹H-MRS may be potentially used for the identification of meningiomas with high proliferative activity, it, seemingly, could not add substantial diagnostic information to other radiological predictors of malignancy in these tumors.
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Affiliation(s)
- Mikhail F Chernov
- International Research and Educational Institute for Integrated Medical Sciences (IREIIMS), Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan. m
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Rogers L, Gilbert M, Vogelbaum MA. Intracranial meningiomas of atypical (WHO grade II) histology. J Neurooncol 2010; 99:393-405. [PMID: 20740303 DOI: 10.1007/s11060-010-0343-1] [Citation(s) in RCA: 117] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Accepted: 08/04/2010] [Indexed: 11/27/2022]
Abstract
Atypical (WHO grade II) meningiomas occupy an intermediate risk group between benign (WHO grade I) and anaplastic (WHO grade III) meningiomas. Although grade II meningiomas have traditionally been recognized in only about 5% of cases, after changes in diagnostic criteria with the current 2007 WHO standards, they now comprise approximately 20-35% of all meningiomas. Given the magnitude of this change, much work is now needed to solidify the adoption of these standards, to render inter-observer and inter-institutional comparisons more uniform, and to more carefully define the incidence of grade II histology. However, it is clear that they carry a several-fold increased risk of recurrence, as well as an increased rate of mortality. We will discuss the definition, diagnosis, and treatment of patients with atypical meningioma; review the current phase II cooperative trials; and draw attention to some questions timely for pre-clinical and clinical research.
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Hanft S, Canoll P, Bruce JN. A review of malignant meningiomas: diagnosis, characteristics, and treatment. J Neurooncol 2010; 99:433-43. [DOI: 10.1007/s11060-010-0348-9] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Accepted: 08/06/2010] [Indexed: 10/19/2022]
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Hsu CC, Pai CY, Kao HW, Hsueh CJ, Hsu WL, Lo CP. Do aggressive imaging features correlate with advanced histopathological grade in meningiomas? J Clin Neurosci 2010; 17:584-7. [PMID: 20219376 DOI: 10.1016/j.jocn.2009.09.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Revised: 08/30/2009] [Accepted: 09/04/2009] [Indexed: 12/20/2022]
Abstract
Atypical and malignant meningiomas are more likely to recur than benign meningiomas. We aimed to distinguish atypical and malignant meningiomas from benign meningiomas based on imaging findings. Between 2004 and 2007, a total of 75 patients with resected intracranial meningiomas were retrospectively reviewed. Histopathological grades were assigned as benign and atypical/malignant meningiomas according to the World Health Organization (WHO) classification. All patients received preoperative CT scans and MRI studies. Six aggressive imaging features were evaluated and compared between the two groups: (i) intratumoral cystic change; (ii) hyperostosis of the adjacent skull; (iii) bony destruction; (iv) extracranial tumor extension through the skull base foramina; (v) arterial encasement; and (vi) peritumoral brain edema. There were 59 benign and 16 atypical/malignant meningiomas. Only intratumoral cystic change and extracranial tumor extension through the skull base foramina were more prevalent in atypical/malignant meningiomas (p=0.001). Hence, these two imaging features might be potential markers of atypical/malignant meningiomas.
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Affiliation(s)
- Chia-Chun Hsu
- Department of Radiology, Buddhist Tzu Chi General Hospital, Taichung Branch, No. 66, Sec. 1, Fongsing Road, Tanzih Township, Taichung County 427, Taiwan
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Giovacchini G, Fallanca F, Landoni C, Gianolli L, Picozzi P, Attuati L, Terreni M, Picchio M, Messa C, Fazio F. C-11 choline versus F-18 fluorodeoxyglucose for imaging meningiomas: an initial experience. Clin Nucl Med 2009; 34:7-10. [PMID: 19092373 DOI: 10.1097/rlu.0b013e31818f4369] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Positron emission tomography/computed tomography (PET/CT) with C-11 choline has been used for staging, restaging, and follow-up of various tumors, whereas its role for imaging meningiomas has only been preliminarily explored. The aim of this study was to compare C-11 choline and F-18 fluorodeoxyglucose (F-18 FDG) uptake in meningiomas and relate these findings to the histopathological analysis. METHODS Two sequential three-dimensional PET/CT scans with 370 MBq (10 mCi) of C-11 choline and 370 MBq (10 mCi) of F-18 FDG were performed 2 hours apart in 7 patients with histologically confirmed meningiomas. Five patients had WHO grade I and 2 had WHO grade II meningioma. For each scan, two-dimensional regions of interest were drawn on tumor boundaries and on the contralateral side on CT images and copied to the corresponding PET images. SUVmax and tumor-to-background ratio were calculated. RESULTS Relative to the contralateral side, C-11 choline uptake was increased in all meningiomas, whereas F-18 FDG uptake was decreased in 6 patients and increased in 1 of the 2 patients with grade II meningiomas. In the whole group, SUVmax of C-11 choline and F-18 FDG were 3.6 +/- 1.3 and 5.7 +/- 1.3, respectively. The tumor-to-background ratio for C-11 choline was much higher than that for F-18 FDG (5.3 +/- 0.8 vs. 0.9 +/- 0.2, respectively) (P < 0.001). The uptake of C-11 choline was higher in patients with grade II than in grade I meningiomas. CONCLUSIONS These preliminary results suggest that C-11 choline may better image meningiomas in comparison with F-18 FDG. Clinical applications of C-11 choline PET/CT for grading and follow-up of meningiomas need to be assessed in further studies.
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Lanotte M, Benech F, Panciani PP, Cassoni P, Ducati A. Systemic cancer metastasis in a meningioma: Report of two cases and review of the literature. Clin Neurol Neurosurg 2009; 111:87-93. [DOI: 10.1016/j.clineuro.2008.07.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2008] [Revised: 06/27/2008] [Accepted: 07/01/2008] [Indexed: 11/24/2022]
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Absolute choline concentration measured by quantitative proton MR spectroscopy correlates with cell density in meningioma. Neuroradiology 2008; 51:61-7. [PMID: 19002445 DOI: 10.1007/s00234-008-0461-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Accepted: 09/03/2008] [Indexed: 10/21/2022]
Abstract
INTRODUCTION This study was aimed to investigate the relationship between quantitative proton magnetic resonance spectroscopy (1H-MRS) and pathological changes in meningioma. MATERIALS AND METHODS Twenty-two meningioma cases underwent single voxel 1H-MRS (point-resolved spectroscopy sequence, repetition time/echo time = 2,000 ms/68, 136, 272 ms). Absolute choline (Cho) concentration was calculated using tissue water as the internal reference and corrected according to intra-voxel cystic/necrotic parts. Pathological specimens were stained with MIB-1 antibody to measure cell density and proliferation index. Correlation analysis was performed between absolute Cho concentration and cell density and MIB-1 labeled proliferation index. RESULTS Average Cho concentration of all meningiomas before correction was 2.95 +/- 0.86 mmol/kg wet weight. It was increased to 3.23 +/- 1.15 mmol/kg wet weight after correction. Average cell density of all meningiomas was 333 +/- 119 cells/HPF, and average proliferation index was 2.93 +/- 5.72%. A linear, positive correlation between cell density and Cho concentration was observed (r = 0.650, P = 0.001). After correction of Cho concentration, the correlation became more significant (r = 0.737, P < 0.001). However, no significant correlation between Cho concentration and proliferation index was found. There seemed to be a positive correlation trend after correction of Cho concentration but did not reach significant level. CONCLUSION Absolute Cho concentration, especially Cho concentration corrected according to intra-voxel cystic/necrotic parts, reflects cell density of meningioma.
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Stadlbauer A, Buchfelder M, Nimsky C, Saeger W, Salomonowitz E, Pinker K, Richter G, Akutsu H, Ganslandt O. Proton magnetic resonance spectroscopy in pituitary macroadenomas: preliminary results. J Neurosurg 2008; 109:306-12. [PMID: 18671644 DOI: 10.3171/jns/2008/109/8/0306] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT The aim of this study was to correlate proton MR (1H-MR) spectroscopy data with histopathological and surgical findings of proliferation and hemorrhage in pituitary macroadenomas. METHODS Quantitative 1H-MR spectroscopy was performed on a 1.5-T unit in 37 patients with pituitary macroadenomas. A point-resolved spectroscopy sequence (TR 2000 msec, TE 135 msec) with 128 averages and chemical shift selective pulses for water suppression was used. Voxel dimensions were adapted to ensure that the volume of interest was fully located within the lesion and to obtain optimal homogeneity of the magnetic field. In addition, water-unsuppressed spectra (16 averages) were acquired from the same volume of interest for eddy current correction, absolute quantification of metabolite signals, and determination of full width at half maximum of the unsuppressed water peak (FWHM water). Metabolite concentrations of choline-containing compounds (Cho) were computed using the LCModel program and correlated with MIB-1 as a proliferative cell index from a tissue specimen. RESULTS In 16 patients harboring macroadenomas without hemorrhage, there was a strong positive linear correlation between metabolite concentrations of Cho and the MIB-1 proliferative cell index (R = 0.819, p < 0.001). The metabolite concentrations of Cho ranged from 1.8 to 5.2 mM, and the FWHM water was 4.4-11.7 Hz. Eleven patients had a hemorrhagic adenoma and showed no assignable metabolite concentration of Cho, and the FWHM water was 13.4-24.4 Hz. In 10 patients the size of the lesion was too small (< 20 mm in 2 directions) for the acquisition of MR spectroscopy data. CONCLUSIONS Quantitative 1H-MR spectroscopy provided important information on the proliferative potential and hemorrhaging of pituitary macroadenomas. These data may be useful for noninvasive structural monitoring of pituitary macroadenomas. Differences in the FWHM water could be explained by iron ions of hemosiderin, which lead to worsened homogeneity of the magnetic field.
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Affiliation(s)
- Andreas Stadlbauer
- Department of Neurosurgery, University of Erlangen-Nuremberg, Erlangen, Germany
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Yue Q, Isobe T, Shibata Y, Anno I, Kawamura H, Yamamoto Y, Takano S, Matsumura A. New observations concerning the interpretation of magnetic resonance spectroscopy of meningioma. Eur Radiol 2008; 18:2901-11. [DOI: 10.1007/s00330-008-1079-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Revised: 05/04/2008] [Accepted: 05/09/2008] [Indexed: 11/28/2022]
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Nagar VA, Ye JR, Ng WH, Chan YH, Hui F, Lee CK, Lim CCT. Diffusion-weighted MR imaging: diagnosing atypical or malignant meningiomas and detecting tumor dedifferentiation. AJNR Am J Neuroradiol 2008; 29:1147-52. [PMID: 18356472 DOI: 10.3174/ajnr.a0996] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Atypical and malignant meningiomas are uncommon tumors with aggressive behavior and higher mortality, morbidity, and recurrence compared with benign tumors. We investigated the utility of diffusion-weighted (DW) MR imaging to differentiate atypical/malignant from benign meningiomas and to detect histologic dedifferentiation to higher tumor grade. MATERIALS AND METHODS We retrospectively compared conventional and DW MR images (b-value 1000 s/mm(2)) acquired on a 1.5T clinical scanner between 25 atypical/malignant and 23 benign meningiomas. The optimal cutoff for the absolute apparent diffusion coefficient (ADC) and normalized ADC (NADC) ratio to differentiate between the groups was determined by using receiver operating characteristic (ROC) analysis. RESULTS Irregular tumor margins, peritumoral edema, and adjacent bone destruction occurred significantly more often in atypical/malignant than in benign meningiomas. The mean ADC of atypical/malignant meningiomas (0.66 +/- 0.13 x 10(-3) mm(2)/s) was significantly lower compared with benign meningiomas (0.88 +/- 0.08 x 10(-3) mm(2)/s; P < .0001). Mean NADC ratio in the atypical/malignant group (0.91 +/- 0.18) was also significantly lower than the benign group (1.28 +/- 0.11; P < .0001), without overlap between groups. ROC analysis showed that ADC and NADC thresholds of 0.80 x 10(-3) mm(2)/s and 0.99, respectively, had the best accuracy: at the NADC threshold of 0.99, the sensitivity and specificity were 96% and 100%, respectively. Two patients had isointense benign tumors on initial DW MR imaging, and these became hyperintense with the decrease in ADC and NADC below these thresholds when they progressed to atypical and malignant meningiomas on recurrence. CONCLUSIONS ADC and NADC ratios in atypical/malignant meningiomas are significantly lower than in benign tumors. Decrease in ADC and NADC on follow-up imaging may suggest dedifferentiation to higher tumor grade.
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Affiliation(s)
- V A Nagar
- Department of Neuroradiology, National Neuroscience Institute, Singapore
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Monleón D, Morales JM, Gonzalez-Darder J, Talamantes F, Cortés O, Gil-Benso R, López-Ginés C, Cerdá-Nicolás M, Celda B. Benign and atypical meningioma metabolic signatures by high-resolution magic-angle spinning molecular profiling. J Proteome Res 2008; 7:2882-8. [PMID: 18507434 DOI: 10.1021/pr800110a] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Meningiomas are neoplasms that arise from the leptomeningeal covering of the brain and spinal cord, accounting for 15%-20% of CNS tumors. The WHO classifies meningiomas into three histological grades: benign, atypical, and anaplasic in accordance with the clinical prognosis. Atypical and anaplasic meningiomas tend to recur. Sometimes, meningiomas with histological diagnosis of benign meningioma show clinical characteristics of atypical meningioma. In this context, high-resolution magic-angle spinning (HR-MAS) spectroscopy of intact tissue from brain tumor biopsies has shown great potential as a support diagnostic tool. In this work, we show differences between benign and atypical meningiomas in HR-MAS molecular profiles of meningioma biopsies. Metabolic differences between meningioma grades include changes in the levels of glutathione. Glutathione role in cancer is still unclear, as it may act both as protective and pathogenic factor. Glutamine and glutamate, which are related to glutathione metabolism and have been associated with tumor recurrence, are also increased in atypical meningiomas. Other metabolites associated with tumor malignancy that show statistically significant differences between benign and atypical meningiomas include phosphocholine and phosphoethanolamine. Overall, this work suggests that the additional information obtained by NMR metabolomics applied to biopsies of human meningiomas may be useful for assessing tumor grade and determining optimum treatment strategies.
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Affiliation(s)
- Daniel Monleón
- Fundacion de Investigacion del Hospital Clinico Universitario de Valencia, Valencia, Spain
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Preliminary study in vitro brain tumor with high resolution magic angle spinning proton magnetic resonance spectroscopy. ACTA ACUST UNITED AC 2008. [DOI: 10.1007/s10330-007-0162-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sade B, Chahlavi A, Krishnaney A, Nagel S, Choi E, Lee JH. World Health Organization Grades II and III meningiomas are rare in the cranial base and spine. Neurosurgery 2008; 61:1194-8; discussion 1198. [PMID: 18162898 DOI: 10.1227/01.neu.0000306097.38141.65] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE This study was undertaken to assess a possible relationship between the tumor location and the incidence of World Health Organization (WHO) Grades II and III meningiomas. METHODS A retrospective review of 794 consecutive patients who underwent meningioma resection between January 1991 and March 2004 was conducted. Among these, 47 patients (5.9%) with WHO Grade II meningiomas and 16 patients (2%) with Grade III meningiomas were further analyzed. Tumor location was assessed using preoperative magnetic resonance imaging scans and/or operative reports. Histological grading was done according to the WHO 2000 Classification scheme. RESULTS WHO Grade II tumors were found in eight out of 289 (2.8%) cranial base meningiomas and in zero spinal meningiomas, compared with 39 out of 429 (9.1%) non-cranial base meningiomas. Grade III histology was encountered in two (0.7%) cranial base tumors and in one out of 76 (1.3%) spinal tumors, compared with 13 (3%) non-cranial base tumors. The combined incidence of Grades II and III meningiomas was significantly lower in the cranial base (3.5%) and spinal (1.3%) locations compared with non-cranial base locations (12.1%) (P < 0.001). CONCLUSION WHO Grades II and III meningiomas occur far less frequently in the cranial base and spinal locations. Tumors arising from these locations may have different mechanisms of tumorigenesis and/or progression compared with meningiomas arising from other (non-cranial base) regions.
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Affiliation(s)
- Burak Sade
- Brain Tumor Institute, The Cleveland Clinic, Cleveland, Ohio 44195, USA
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Opstad KS, Ladroue C, Bell BA, Griffiths JR, Howe FA. Linear discriminant analysis of brain tumour (1)H MR spectra: a comparison of classification using whole spectra versus metabolite quantification. NMR IN BIOMEDICINE 2007; 20:763-70. [PMID: 17326043 DOI: 10.1002/nbm.1147] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
(1)H MRS is an attractive choice for non-invasively diagnosing brain tumours. Many studies have been performed to create an objective decision support system, but there is not yet a consensus as to the best techniques of MRS acquisition or data processing to be used for optimum classification. In this study, we investigate whether LCModel analysis of short-TE (30 ms), single-voxel tumour spectra provide a better input for classification than the use of the original spectra. A total of 145 histologically diagnosed brain tumour spectra were acquired [14 astrocytoma grade II (AS2), 15 astrocytoma grade III (AS3), 42 glioblastoma (GBM), 41 metastases (MET) and 33 meningioma (MNG)], and linear discriminant analyses (LDA) were performed on the LCModel analysis of the spectra and the original spectra. The results consistently suggest improvement in classification when the LCModel concentrations are used. LDA of AS2, MNG and high-grade tumours (HG, comprising GBM and MET) correctly classified 94% using the LCModel dataset compared with 93% using the spectral dataset. The inclusion of AS3 reduced the accuracy to 82% and 78% for LCModel analysis and the original spectra, respectively, and further separating HG into GBM and MET gave 70% compared with 60%. Generally MNG spectra have profiles that are visually distinct from those of the other tumour types, but the classification accuracy was typically about 80%, with MNG with substantial lipid/macromolecule signals being classified as HG. Omission of the lipid/macromolecule concentrations in the LCModel dataset provided an improvement in classification of MNG (91% compared with 76%). In conclusion, there appears to be an advantage to performing pattern recognition on the quantitative analysis of tumour spectra rather than using the whole spectra. However, the results suggest that a two-step LDA process may help in classifying the five tumour groups to provide optimum classification of MNG with high lipid/macromolecule contributions which maybe misclassified as HG.
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Affiliation(s)
- K S Opstad
- Cancer Research UK Biomedical Magnetic Resonance Research Group, St George's University of London, London, UK.
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Ueda F, Suzuki M, Matsui O, Uchiyama N. Automated MR spectroscopy of intra- and extraventricular neurocytomas. Magn Reson Med Sci 2007; 6:75-81. [PMID: 17690537 DOI: 10.2463/mrms.6.75] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE We evaluated the automated magnetic resonance spectroscopic (MRS) characteristics of intra- and extraventricular neurocytomas. MATERIALS AND METHODS One extra- and 4 intraventricular neurocytomas were studied. Automated single-voxel proton MRS was performed with a 1.5 T MR scanner. The results of 6 total automated MR spectra were analyzed for each tumor. RESULTS Lactate resonance was detected as a doublet in 3 MR spectra of 2 intraventricular neurocytomas. A peak corresponding to N-acetylaspartate (NAA) was small in 5 MR spectra of 4 intraventricular neurocytomas. Creatine (Cr) resonance was detected in all 6 MR spectra. Prominent choline (Cho) resonance was found in all 6 MR spectra. The myoinositol (MI) and/or glycine (Gly) peaks were large in 3 MR spectra of 2 intraventricular neurocytomas. CONCLUSION The presence of the NAA signal and high MI and/or Gly signals may be characteristic features of intraventricular neurocytomas. A combination of prominent Cho resonance and detectable Cr resonance is a common feature of both intra- and extraventricular neurocytomas.
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Affiliation(s)
- Fumiaki Ueda
- Department of Radiology, Kanazawa University School of Medicine, Kanazawa, Japan.
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Alimenti A, Delavelle J, Lazeyras F, Yilmaz H, Dietrich PY, de Tribolet N, Lövblad KO. Monovoxel 1H Magnetic Resonance Spectroscopy in the Progression of Gliomas. Eur Neurol 2007; 58:198-209. [PMID: 17823533 DOI: 10.1159/000107940] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2007] [Accepted: 02/21/2007] [Indexed: 11/19/2022]
Abstract
AIM Can monovoxel magnetic resonance spectroscopy (MRS) reliably follow tumour progression in low-grade glioma? MATERIALS AND METHODS 21 patients with low-grade glioma underwent at least 3 MRS. RESULTS For progression from a grade II to grade III tumour, a sensitivity of 57.1% and specificity of 60% were observed, with a positive predictive value (PPV) of 48.8% and a negative predictive value (NPV) of 54.5%. For progression under treatment, we obtained a sensitivity of 57.1% by N-acetylaspartate (NAA)/choline (Cho) and myoinositol/creatine (Cr) and a specificity of 100% by Cho/Cr and lipids, with a PPV of 80% and a NPV of 63.6%. CONCLUSION We found that NAA/Cho is the best marker of tumour progression before therapy, with a sensitivity of 53.9%. For the therapeutic response, sensitivity was only 28.2%.
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Benedetto N, Perrini P, Scollato A, Buccoliero AM, Di Lorenzo N. Intracranial meningioma containing metastatic colon carcinoma. Acta Neurochir (Wien) 2007; 149:799-803; discussion 803. [PMID: 17660939 DOI: 10.1007/s00701-007-1239-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Accepted: 02/21/2007] [Indexed: 11/24/2022]
Abstract
Tumour-to-tumour metastasis is a rare pathological entity. Meningioma is the most common intracranial tumour to host metastases, the majority of which arise from breast and lung cancers. We present the first report of a colonic cancer metastasis within an intracranial meningioma.A 76-year-old woman presented with a one month history of partial seizures. Her medical history included resection of an adenocarcinoma of the descending colon followed by adjuvant chemotherapy 1 year before our evaluation. Magnetic resonance imaging revealed a homogeneously enhancing lesion in the right frontal convexity.A well capsulated tumour attached to the frontal dura was surgically removed. The pathological examination demonstrated a mixture of fibrous meningioma and colloid adenocarcinoma. Possible explanations for the development of a cohesive chimeric mass of composite pathology are investigated.
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Affiliation(s)
- N Benedetto
- Neurosurgical Department, University of Florence, Firenze, Italy
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Simon M, Boström JP, Hartmann C. Molecular genetics of meningiomas: from basic research to potential clinical applications. Neurosurgery 2007; 60:787-98; discussion 787-98. [PMID: 17460514 DOI: 10.1227/01.neu.0000255421.78431.ae] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
To review our current understanding of the molecular pathogenesis of meningiomas, to suggest topics for future investigations, and to present perspectives for clinical application. Significant progress has been made in recent years in delineating the molecular mechanisms involved in meningioma formation, growth, and malignant progression. However, many questions remain unanswered. Mutations in the NF2 gene probably account for the formation of more than half of all meningiomas. On the other hand, the molecular events underlying the initiation of meningiomas without NF2 mutations have yet to be identified. Investigating hereditary conditions associated with an increased meningioma incidence and the mechanisms underlying the development of radiation-induced meningiomas could potentially yield relevant insights. Meningioma growth is sustained by the dysregulated expression of steroid hormones, growth factors, their receptors, and activation of signal transduction cascades. The underlying genetic causes are unknown. Malignant progression of meningiomas probably involves the inactivation of tumor suppressor genes on chromosomes 1p, 9p, 10q, and 14q. However, with the possible exception of INK4A/INK4B, the actual targets of these chromosomal losses have remained largely elusive. Cell cycle dysregulation and telomerase activation have been recognized as important steps in meningioma progression. Telomere dynamics, cell cycle control, and the mechanisms responsible for deoxyribonucleic acid damage control are tightly interwoven. Investigating genes involved in the maintenance of genomic integrity might significantly deepen the understanding of meningioma progression. An area that has received relatively little attention thus far is the genetic background of meningioma spread and invasion. Possible clinical applications of the molecular data available may include a meningioma grading system based on genetic alterations, as well as therapeutic strategies for refractory meningiomas aimed at interfering with signal transduction pathways.
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Buhl R, Nabavi A, Wolff S, Hugo HH, Alfke K, Jansen O, Mehdorn HM. MR spectroscopy in patients with intracranial meningiomas. Neurol Res 2007; 29:43-6. [PMID: 17427274 DOI: 10.1179/174313206x153824] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
With magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS), we tried to get more pre-operative information in patients with suspicious meningioma concerning the histologic diagnosis especially regarding WHO Grades I and II meningiomas. Apart from the known spectra and metabolites such as choline, creatine and N-acetyl-aspartate (NAA), recent publications have shown that lactate is often found in necrotic tumor tissue. Within a 2 year period, 39 patients with an intracranial meningioma were studied with MRS. In 62.5% of histologic atypical meningiomas (WHO Grade II), a lactate peak could be demonstrated in the pre-operative MRS. Interestingly, also patients with multiple meningiomas show different spectra of their tumors.
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Affiliation(s)
- R Buhl
- Department of Neurosurgery, University of Schleswig Holstein, Campus Kiel, Kiel, Germany.
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Galanaud D, Nicoli F, Confort-Gouny S, Le Fur Y, Ranjeva JP, Viola A, Girard N, Cozzone PJ. [Indications for cerebral MR proton spectroscopy in 2007]. Rev Neurol (Paris) 2007; 163:287-303. [PMID: 17404517 DOI: 10.1016/s0035-3787(07)90402-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic resonance spectroscopy (MRS) is being increasingly performed alongside the more conventional MRI sequences in the exploration of neurological disorders. It is however important to clearly differentiate its clinical applications aiming at improving the differential diagnosis or the prognostic evaluation of the patient, from the research protocols, when MRS can contribute to a better understanding of the pathophysiology of the disease or to the evaluation of new treatments. The most important applications in clinical practice are intracranial space occupying lesions (especially the positive diagnosis of intracranial abscesses and gliomatosis cerebri and the differential diagnosis between edema and tumor infiltration), alcoholic, hepatic, and HIV-related encephalopathies and the exploration of metabolic diseases. Among the research applications, MRS is widely used in multiple sclerosis, ischemia and brain injury, epilepsy and neuro degenerative diseases.
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Affiliation(s)
- D Galanaud
- Centre de Résonance Magnétique Biologique et Médicale (CRMBM), UMR CNRS 6612, Faculté de Médecine et Hôpital La Timone, Marseille, France
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Krishnamoorthy T, Radhakrishnan VV, Thomas B, Jeyadevan ER, Menon G, Nair S. Alanine peak in central neurocytomas on proton MR spectroscopy. Neuroradiology 2007; 49:551-4. [PMID: 17364196 DOI: 10.1007/s00234-007-0224-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Accepted: 02/07/2007] [Indexed: 11/25/2022]
Abstract
INTRODUCTION We present three consecutive patients with central neurocytoma in whom proton MRS demonstrated the presence of alanine. MATERIALS AND METHODS Three patients in the age range 24 to 30 years underwent MRI and proton MRS using a 1.5-T system. MRS was performed with the multivoxel PRESS sequence. All three patients underwent surgery and the diagnosis of central neurocytoma was established by histopathological examination and immunostaining. RESULTS With an echo time of 135 ms glycine, high choline, small NAA and alanine were observed in all three patients. CONCLUSION Alanine may be observed in central neurocytomas as it is in meningiomas. Other spectral peaks such as those for glycine and NAA should help to identify this tumor correctly.
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Affiliation(s)
- T Krishnamoorthy
- Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, 695011, India.
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Demir MK, Iplikcioglu AC, Dincer A, Arslan M, Sav A. Single voxel proton MR spectroscopy findings of typical and atypical intracranial meningiomas. Eur J Radiol 2006; 60:48-55. [PMID: 16844335 DOI: 10.1016/j.ejrad.2006.06.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2006] [Revised: 06/11/2006] [Accepted: 06/12/2006] [Indexed: 11/19/2022]
Abstract
PURPOSE To prospectively define proton magnetic resonance spectroscopy (MRS) findings of meningiomas, and describe the ability or inability of short- and long-echo MRS to differentiate typical and atypical meningiomas in vivo. MATERIAL AND METHODS Seventeen patients with pathologically confirmed typical meningiomas and six with atypical meningiomas were evaluated with conventional MR imaging and MRS before resection. MRS studies using point-resolved spectroscopy (PRESS) localisation, at short- and long-echo time (TR 2000 ms, TE: 30 and 144 ms, 64-96 acquisition) were acquired on a 1.5 T scanner. MRS data obtained from these patients were compared with histopathological findings. Mean cellular proliferation (MIB-1) antibody staining against the Ki-67 antigen was also determined in all meningiomas. RESULTS Prominent choline (Cho) was present in all meningiomas. Alanine (Ala) was observed in 21 cases of the 23 meningiomas. Acetylaspartate (NAA) and creatine (Cr) were either not observed or detected in minimal amounts in at all both groups of meningiomas on long TE (144 ms) spectra. The mean Cho/Cr values in the four atypical meningiomas were 4.44+/-0.30 (mean+/-standard deviation) and 3.39+/-0.52 in the 12 typical meningiomas on short TE spectra. Cho/Cr ratio could not be determined in the other seven cases because of a lack of creatine peak. Of the five meningiomas in which a lactate peak was detected, four were in typical cases and only one was in atypical meningioma. Mean MIB-1 proliferation index was 3.7% in typical meningiomas and 10% in atypical meningiomas. CONCLUSION Prominent Cho, absence or low amount of NAA and Cr, and presence of Ala were common characteristics of spectral pattern of both atypical and typical meningiomas on MRS. MRS cannot reliably differentiate typical intracranial meningiomas from atypical meningiomas preoperatively. Mean MIB-1 proliferation index was well correlated with histopathology findings.
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Affiliation(s)
- Mustafa Kemal Demir
- Department of Radiology, Trakya University School of Medicine, Istanbul, Turkey.
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Modha A, Gutin PH. Diagnosis and treatment of atypical and anaplastic meningiomas: a review. Neurosurgery 2006; 57:538-50; discussion 538-50. [PMID: 16145534 DOI: 10.1227/01.neu.0000170980.47582.a5] [Citation(s) in RCA: 227] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Atypical and anaplastic meningiomas are uncommon tumors with a poorer prognosis than benign meningiomas. We reviewed the current literature and attempted to integrate and summarize available information to determine a logical approach to these tumors. Both tumors are rare and are often integrated with benign meningiomas when treatments are evaluated. In addition, because there has not been one histopathological classification scheme for atypical and anaplastic meningiomas in the past, there are numerous inconsistencies in the literature. Malignant progression with accumulation of mutations in a benign meningioma can result in an atypical and/or anaplastic meningioma. Both tumors are difficult to manage and have high recurrence and poor survival rates. The extent of tumor resection and histological grade are the key determinants for recurrence. In addition, metastases are unusual, but they do occur. We also review the evidence available that has resulted in the current World Health Organization classification. Radiation therapy can be used as an adjunctive treatment after both total and subtotal resection. In addition, the role of stereotactic radiosurgery is increasing, along with a possible role for brachytherapy. There are no effective chemotherapeutic agents available. A treatment algorithm is suggested.
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Affiliation(s)
- Ashok Modha
- Memorial Sloan-Kettering Cancer Center, Department of Neurological Surgery, Weill Medical College of Cornell University, New York, New York, USA
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Fukui S, Matsuno M, Inubushi T, Nosaka S. N-Acetylaspartate concentrations in the thalami of neuropathic pain patients and healthy comparison subjects measured with (1)H-MRS. Magn Reson Imaging 2005; 24:75-9. [PMID: 16410181 DOI: 10.1016/j.mri.2005.10.021] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2005] [Accepted: 10/18/2005] [Indexed: 11/23/2022]
Abstract
We investigated the absolute concentration of N-acetylaspartate (NAA) in the thalami of neuropathic pain patients and healthy comparison subjects by single-voxel proton magnetic resonance spectroscopy ((1)H-MRS). (1)H-MRS was performed with a 1.5-T MR system on a voxel in the thalamus bilaterally in 9 neuropathic pain patients and 14 healthy control subjects. We measured the absolute concentration of NAA using a linear combination model. The NAA concentration in the thalamus decreased significantly on the contralateral side in seven patients and on the ipsilateral side in two patients, as compared with the mean NAA concentration of the healthy control subjects. The NAA concentrations in two patients who did not respond to standard pain treatments were extremely decreased. Our results using (1)H-MRS suggest that neuropathic pain seems to be associated with an abnormal balance of the neural activity in the thalamus. The NAA concentration of the thalamus may be related to the efficacy of therapy. (1)H-MRS may serve as a useful noninvasive tool for evaluating thalamic neural activity in neuropathic pain patients.
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Affiliation(s)
- Sei Fukui
- Department of Anesthesiology, Shiga University of Medical Science, Tukinowa, Seta, Otsu, Shiga 520-2192, Japan.
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Denaro L, Di Rocco F, Gessi M, Lauriola L, Lauretti L, Pallini R, Fernandez E, Maira G. Pyrogenic cytokine interleukin-6 expression by a chordoid meningioma in an adult with a systemic inflammatory syndrome. J Neurosurg 2005; 103:555-8. [PMID: 16235690 DOI: 10.3171/jns.2005.103.3.0555] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Chordoid meningioma is a rare meningothelial tumor characterized by chordoma-like histological features with lymphoplasmacellular infiltration. This tumor is often seen in children, but not in adults, with a systemic inflammatory syndrome (iron-resistant microcytic anemia and/or dysgammaglobulinemia) and very rarely with a persistent moderate hyperthermia. In the present report the authors describe a temporal chordoid meningioma in a 30-year-old woman who presented with fever, headache, and a serological inflammatory syndrome. The clinical symptomatology, chiefly the fever, disappeared immediately after removal of the tumor. To the authors' knowledge, only one similar patient with such clinical presentation and response to surgery has been mentioned in the literature. Interestingly, at immunohistochemical examination, the neoplasm showed focal positivity for the pyrogenic cytokine interleukin-6. The capacity of the tumor to produce this pyrogenic cytokine could explain both the patient's clinical presentation and her response to the surgical management.
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Affiliation(s)
- Luca Denaro
- Department of Neurosurgery, Catholic University School of Medicine, Rome, Italy
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Matsumura A, Isobe T, Anno I, Takano S, Kawamura H. Correlation between choline and MIB-1 index in human gliomas. A quantitative in proton MR spectroscopy study. J Clin Neurosci 2005; 12:416-20. [PMID: 15925772 DOI: 10.1016/j.jocn.2004.08.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2004] [Accepted: 08/03/2004] [Indexed: 11/26/2022]
Abstract
BACKGROUND Choline (Cho) containing compounds are usually evaluated using magnetic resonance spectroscopy (MRS) by relative ratios such as Cho/N-acetylaspartate (NAA) and Cho/creatine (Cre) ratios. To clarify the significance of Cho level in gliomas, we evaluated the quantified Cho level using MRS and compared it with the proliferation activity as determined by MIB-1 immunoreactivity in the histological specimen. METHODS There were seven benign and seven malignant gliomas. MRS was obtained using a single-voxel proton regional imaging of metabolites (PRIME) sequence with three different TE for T2 compensation. Quantified Cho level was compared with the number of MIB-1 immunopositive positive cells and cell density in surgical specimens. RESULT A positive correlation was observed between Cho and MIB-1 in benign gliomas, whereas there was a trend to an inverse correlation in malignant gliomas. This inverse correlation became a positive correlation when the necrotic area of the tumor (on the T1-weighted gadolinium enhanced images) was excluded from the voxel of interest (VOI) for MRS, but this correlation did not reach statistical significance. CONCLUSIONS The quantification data clarified the behavior of Cho in malignant gliomas. The quantification method has the advantage of limiting the influence of other metabolites on Cho determination. In particular, the levels of other commonly measured metabolites, including Cre, may also be altered in glioma, making ratios between metabolites misleading. Heterogeneity in the MRS VOI should be considered when evaluating the proliferative activity of malignant glioma by MRS.
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Affiliation(s)
- Akira Matsumura
- Department of Neurosurgery, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
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Harting I, Jost G, Hacke N, Hartmann M. 1H-Magnetresonanz-Spektroskopie von Hirntumoren. DER NERVENARZT 2005; 76:403-17. [PMID: 15349736 DOI: 10.1007/s00115-004-1797-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Magnetic resonance spectroscopy facilitates non-invasive determination of metabolic changes in vivo. The main metabolites are the neuronal marker N-acetylaspartate (NAA), cholines reflecting membrane turnover, creatine, lactate, and mobile lipids. Primary brain tumours exhibit reduced NAA and increased choline resonances compared to normal brain, and these abnormalities increase with higher malignancy. Increasing choline resonances on follow-up studies correlate with tumour progression, whereas the reduction of initially increased choline resonances indicates a transition from viable tumour to necrotic tissue. Metastases as non-neuroectodermal tumours lack NAA, but demonstrate elevated choline, lactate and lipid resonances. Lymphomas are characterised by massively increased lipid resonances with markedly elevated choline. Prominent alanine resonances are often observed in meningioma. Cystic/necrotic lesions demonstrate elevated lactate regardless of their aetiology. The characteristic finding of prominent resonances from acetate, succinate, and alanine, of leucine, isoleucine and valine in untreated bacterial abscesses allows the differentiation of bacterial abscesses from cystic/necrotic brain tumours.
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Affiliation(s)
- I Harting
- Abteilung Neuroradiologie, Neurologische Klinik, Universitätsklinikum Heidelberg.
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Abstract
Magnetic resonance imaging (MRI) is the neuroimaging method of choice for the noninvasive monitoring of patients with brain tumors due to the enormous amount of information it yields regarding the morphologic features of the lesion and surrounding parenchyma. Over the past decade, proton magnetic resonance spectroscopy (1H-MRS), which uses the same technology as MRI and can be performed during a routine clinical imaging examination, has been used to glean information about the metabolic status of the brain. Accurate interpretation of 1H-MRS data from individual patients requires an understanding of the various techniques for acquiring the data, the physiologic basis of the metabolic signatures obtained from different types of tumors, and the specificity of the technique. This review covers the basic physics of 1H-MRS, the spectral and physiological characteristics of the metabolites that are typically measured in various types of brain tumors, and the clinical utility of 1H-MRS with respect to diagnosis, therapeutic planning, and the assessment of response to treatment.
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Soo MYS, Ng T, Gomes L, Da Cruz M, Dexter M. Skull base chordoid meningioma: Imaging features and pathology. ACTA ACUST UNITED AC 2004; 48:233-6. [PMID: 15230763 DOI: 10.1111/j.1440-1673.2004.01278.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The clinical, imaging and pathological features of a skull base chordoid meningioma (CM) are described. The huge tumour resulted in obstructive hydrocephalus and partial erosion of the clivus such that a chordoma was suspected. The lesion's MRI findings were similar to those of a meningioma. Light microscopic, immunohistochemistry and ultrastructural features were diagnostic of CM. Chordoid meningioma is a rare subtype of meningioma and has a great tendency to recur should surgical resection be incomplete.
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Affiliation(s)
- Mark Y S Soo
- Department of Radiology, Westmead Hospital, Sydney, New South Wales, Australia.
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Chanalet S, Lebrun-Frenay C, Frenay M, Lonjon M, Chatel M. Symptomatologie clinique et diagnostic neuroradiologique des tumeurs intracrâniennes. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.emcn.2003.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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