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Sato D, Takami H, Takayanagi S, Ikemura M, Matsuura R, Tanaka S, Saito N. Intraventricular central neurocytoma molecularly defined as extraventricular neurocytoma: a case representing the discrepancy between clinicopathological and molecular classifications. Brain Tumor Pathol 2023; 40:230-234. [PMID: 37695397 PMCID: PMC10575805 DOI: 10.1007/s10014-023-00469-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 08/26/2023] [Indexed: 09/12/2023]
Abstract
Central neurocytoma (CN) is classically defined by its intraventricular location, neuronal/neurocytic differentiation, and histological resemblance to oligodendroglioma. Extraventricular neurocytoma (EVN) shares similar histological features with CN, while it distributes any site without contact with the ventricular system. CN and EVN have distinct methylation landscapes, and EVN has a signature fusion gene, FGFR1-TACC1. These characteristics distinguish between CN and EVN. A 30-year-old female underwent craniotomy and resection of a left intraventricular tumor at our institution. The histopathology demonstrated the classical findings of CN. Adjuvant irradiation with 60 Gy followed. No recurrence has been recorded for 25 years postoperatively. RNA sequencing revealed FGFR1-TACC1 fusion and methylation profile was discrepant with CN but compatible with EVN. We experienced a case of anatomically and histologically proven CN in the lateral ventricle. However, the FGFR1-TACC1 fusion gene and methylation profiling suggested the molecular diagnosis of EVN. The representative case was an "intraventricular" neurocytoma displaying molecular features of an "extraventricular" neurocytoma. Clinicopathological and molecular definitions have collided in our case and raised questions about the current definition of CN and EVN.
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Affiliation(s)
- Daisuke Sato
- Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Hirokazu Takami
- Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
| | - Shunsaku Takayanagi
- Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Masako Ikemura
- Department of Pathology and Diagnostic Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Reiko Matsuura
- Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Shota Tanaka
- Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Nobuhito Saito
- Department of Neurosurgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
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Andour H, Rostoum S, Cherraqi A, Fikri M, Ech-Cherif El Kettani N, Jiddane M, Touarsa F. Central neurocytoma-positive and differential diagnosis: An example through a case report. SAGE Open Med Case Rep 2023; 11:2050313X231164280. [PMID: 37056701 PMCID: PMC10087641 DOI: 10.1177/2050313x231164280] [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: 10/18/2022] [Accepted: 02/28/2023] [Indexed: 04/15/2023] Open
Abstract
Central neurocytoma is a rare intraventricular tumor, occurring typically in the lateral ventricle of young adults. It is considered as a neuronal-glial benign tumor with favorable prognosis. Imaging is a cornerstone allowing the accurate preoperative diagnosis on the basis of several characteristic features. We report the case of a 31-year-old man who has been complaining of progressive headaches and in whom brain magnetic resonance imaging revealed a central neurocytoma. We remind then, through a literature review, the main criteria to set the diagnosis of this tumor and rule out the other possible diagnoses.
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Affiliation(s)
- Hajar Andour
- Mohammed V Military Instruction
Hospital, Rabat, Morocco
- Hajar Andour, Mohammed V Military
Instruction Hospital, Rabat 10100, Morocco.
| | | | - Amine Cherraqi
- Mohammed V Military Instruction
Hospital, Rabat, Morocco
| | - Meriem Fikri
- Ibn Sina University Hospital Center,
Rabat, Morocco
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Machine learning–based multiparametric magnetic resonance imaging radiomics model for distinguishing central neurocytoma from glioma of lateral ventricle. Eur Radiol 2022; 33:4259-4269. [PMID: 36547672 DOI: 10.1007/s00330-022-09319-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 10/16/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To develop a machine learning-based radiomics model based on multiparametric magnetic resonance imaging (MRI) for preoperative discrimination between central neurocytomas (CNs) and gliomas of lateral ventricles. METHODS A total of 132 patients from two medical centers were enrolled in this retrospective study. Patients from the first medical center were divided into a training cohort (n = 74) and an internal validation cohort (n = 30). Patients from the second medical center were used as the external validation cohort (n = 28). Features were extracted from contrast-enhanced T1-weighted and T2-weighted images. A support vector machine was used for radiomics model investigation. Performance was evaluated using the sensitivity, specificity, and the area under the receiver operating characteristic curve (AUC). The model's performance was also compared with those of three radiologists. RESULTS The radiomics model achieved an AUC of 0.986 in the training cohort, 0.933 in the internal validation cohort, and 0.903 in the external validation cohort. In the three cohorts, the AUC values were 0.657, 0.786, and 0.708 for radiologist 1; 0.838, 0.799, and 0.790 for radiologist 2; and 0.827, 0.871, and 0.862 for radiologist 3. When assisted by the radiomics model, two radiologists improved their performance in the training cohort (p < 0.05) but not in the internal or external validation cohorts. CONCLUSIONS The machine learning radiomics model based on multiparametric MRI showed better performance for distinguishing CNs from lateral ventricular gliomas than did experienced radiologists, and it showed the potential to improve radiologist performance. KEY POINTS • The machine learning radiomics model shows excellent performance in distinguishing CNs from gliomas. • The radiomics model outweighs two experienced radiologists (area under the receiver operating characteristic curve, 0.90 vs 0.79 and 0.86, respectively). • The radiomics model has the potential to enhance radiologist performance.
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Goyal S, Kataria T, Gupta D, Dhyani A, Mohapatra I, Narang KS. Atypical central neurocytoma with leptomeningeal dissemination: a case report. J Egypt Natl Canc Inst 2020; 32:23. [PMID: 32462353 DOI: 10.1186/s43046-020-00030-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/24/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Central neurocytomas represent 0.25-0.5% of all intracranial tumors in adults. Leptomeningeal spread is uncommon, and the exact incidence of meningeal spread is unknown due to sparse literature. We present the clinical course and management outcome of a case of atypical central neurocytoma with leptomeningeal spread. CASE PRESENTATION A young gentleman, who initially presented with memory loss, was found to have a right intra-axial periventricular mass on imaging. He underwent subtotal resection, and operative histopathology suggested a periventricular atypical neurocytoma. In view of subtotal resection, adjuvant focal radiation therapy was recommended, but he developed headache and blurring of vision 10 days postoperatively. Contrast enhanced craniospinal magnetic resonance imaging (MRI) showed residual primary tumor as well as diffuse leptomeningeal spread. Cerebrospinal fluid cytology also showed malignant cells. After tumor board discussion, craniospinal axis irradiation was advised and delivered. He remained disease-free for 10 months after radiation therapy, but then developed local and spinal recurrence, and offered salvage chemotherapy. His general condition deteriorated following chemotherapy with disease progression, and he was subsequently advised best supportive care. CONCLUSION Leptomeningeal dissemination in atypical neurocytomas portends an aggressive course and adverse prognosis; management decisions may need tailoring as per individual presentation.
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Affiliation(s)
- Shikha Goyal
- Division of Radiation Oncology, Medanta The Medicity, Gurugram, Haryana, 122001, India.
| | - Tejinder Kataria
- Division of Radiation Oncology, Medanta The Medicity, Gurugram, Haryana, 122001, India
| | - Deepak Gupta
- Division of Radiation Oncology, Medanta The Medicity, Gurugram, Haryana, 122001, India
| | - Aruj Dhyani
- Division of Radiation Oncology, Medanta The Medicity, Gurugram, Haryana, 122001, India
| | - Ishani Mohapatra
- Department of Pathology, Medanta The Medicity, Gurugram, Haryana, 122001, India
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Abstract
Neuronal and mixed glioneuronal tumors represent a group of neoplasms with varying degrees of neural and glial elements. Their age of presentation varies, but they are most commonly seen in children and young adults. With the exception of anaplastic ganglioglioma and other atypical variants, most lesions are low grade; however, they can have significant morbidity because of seizures, mass effect, or difficult to treat hydrocephalus. Although many tumors show overlapping clinical and imaging features, some have relatively distinctive imaging characteristics that may aid in narrowing the differential diagnosis. In this review, we discuss relevant clinical and pathologic characteristics of these tumors and provide an overview of conventional and advanced imaging features that provide clues as to the diagnosis.
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Morassi M, Vivaldi O, Cobelli M, Liserre B, Zorzi F, Bnà C. A Multifocal Glioneuronal Tumor with RGNT-Like Morphology Occupying the Supratentorial Ventricular System and Infiltrating the Brain Parenchyma. World Neurosurg 2020; 133:196-200. [DOI: 10.1016/j.wneu.2019.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 11/16/2022]
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Nery B, Bernardes Filho F, Costa RAF, Pereira LCT, Quaggio E, Queiroz RM, Abud LG, da Cunha Tirapelli DP. Neurocytoma mimicking macroadenoma. Surg Neurol Int 2019; 10:8. [PMID: 30775062 PMCID: PMC6357540 DOI: 10.4103/sni.sni_387_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 11/28/2018] [Indexed: 11/04/2022] Open
Abstract
Background Intraventricular and extraventricular central neurocytomas (CN) are equally frequent among 20-40-year-old men and women. However, sellar and suprasellar extraventricular CN are extremely rare, with only 12 reported cases. Case Description The authors report the case of a Brazilian 27-year-old man who presented with progressive vision loss during the last 4 years and serious bilateral keratoconus. We also review the epidemiological, clinical, radiological, pathological, and treatment features of the 12 reported cases. The patient developed left amaurosis and right temporal hemianopsia after undergoing bilateral corneal transplantation, which was detected during campimetry testing, and subsequently underwent magnetic resonance imaging, which revealed a huge hypophyseal tumor. Endocrinological evaluation revealed complete loss of pituitary function. The patient was referred to our department and underwent a two-step surgery (using transsphenoidal approach and cranio-orbital zygomatic approach) based on the diagnosis of an extraventricular central nervous system neurocytoma. Tumor removal was successful, and the patient was discharged at 3 weeks after admission to our department. Conclusion Although extraventricular neurocytomas of the brain are rare, careful preoperative consideration of its anatomy, pathophysiological features, and radiological features can enhance the treatment outcomes.
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Affiliation(s)
- Breno Nery
- Department of Neurosurgery, Hospital São Francisco, Ribeirão Preto, São Paulo, Brazil
| | - Fred Bernardes Filho
- Department of Internal Medicine, Hospital São Francisco, Ribeirão Preto, São Paulo, Brazil
| | | | | | - Eduardo Quaggio
- Department of Neurosurgery, Hospital São Francisco, Ribeirão Preto, São Paulo, Brazil
| | - Rodolfo Mendes Queiroz
- Department of Documenta Advanced Radiological Center, Hospital São Francisco, Ribeirão Preto, São Paulo, Brazil
| | - Lucas Giansante Abud
- Department of Documenta Advanced Radiological Center, Hospital São Francisco, Ribeirão Preto, São Paulo, Brazil
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Thust S, Kumar A. Extra-axial Tumors. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-61423-6_58-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Thust S, Kumar A. Extra-axial Tumors. Clin Neuroradiol 2019. [DOI: 10.1007/978-3-319-68536-6_58] [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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Diagnostic value of six MRI features for central neurocytoma. Eur Radiol 2018; 28:4306-4313. [DOI: 10.1007/s00330-018-5442-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/01/2018] [Accepted: 03/20/2018] [Indexed: 10/17/2022]
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Wang M, Zhou P, Zhang S, Liu X, Lv L, Wang Z, Ye F, Wang X, Jiang S. Clinical Features, Treatment, and Long-term Outcomes of Central Neurocytoma: A 20-Year Experience at a Single Center. World Neurosurg 2017; 109:e59-e66. [PMID: 28958923 DOI: 10.1016/j.wneu.2017.09.103] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/15/2017] [Accepted: 09/16/2017] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Central neurocytoma (CN) is a rare central nervous system tumor the optimal management strategy of which remains controversial because of their rarity. Detailed information on CN is necessary to establish optimal management strategies. The purpose of this study was to show the clinical features, treatments, and long-term clinical outcomes of CN. METHODS A total of 63 patients with CN were surgically treated between 1995 and 2016 at West China Hospital. All pathologically proven CN cases were identified. Epidemiologic characteristics, clinical features, imaging features, functional outcomes, overall survival, and progression-free survival according to multimodal treatments were reviewed retrospectively. RESULTS There were 29 males and 34 females, with a median age of 29 years (range, 15-58 years). Thirty-four patients underwent gross total resection (GTR) and 29 patients underwent subtotal resection (STR). The surgical approaches to CNs in this study included a transcortical approach (39 cases) and an interhemispheric transcallosal approach (24 cases). There were no differences in functional outcomes or initial extent of resection according to the surgical approach used. The extent of resection was GTR in 34 patients (54.0%), and STR in 29 patients (46.0%). At the median follow-up of 74 months (range, 6-205 months), the actuarial 5-year and 10-year overall survival were 93.3% and 85.4%. At the last follow-up, 8 patients had experienced tumor progression. The 5-year and 10-year progression-free rate was 73.4% and 57.5%. The initial extent of resection and multimodal treatment was not related to overall survival; however, the actuarial local control rate differed significantly according to the initial extent of resection and multimodal treatment. CONCLUSIONS CN is a rare type of World Health Organization grade II primary brain tumor with a tendency to recur. Complete resection of CNs with maximal safety remains the primary treatment to minimize local progression. Adjuvant radiotherapy should be considered in patients receiving incomplete resection. The long-term clinical outcomes of CN after multimodal treatment seem to be satisfactory.
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Affiliation(s)
- Mengmeng Wang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Peizhi Zhou
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Shizhen Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xueyou Liu
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Liang Lv
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Zeming Wang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Feng Ye
- Department of Neurosurgery, People's Hospital of Deyang City, Deyang, Sichuan, China
| | - Xiang Wang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Shu Jiang
- Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
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Bui TT, Lagman C, Chung LK, Tenn S, Lee P, Chin RK, Kaprealian T, Yang I. Systematic Analysis of Clinical Outcomes Following Stereotactic Radiosurgery for Central Neurocytoma. Brain Tumor Res Treat 2017; 5:10-15. [PMID: 28516073 PMCID: PMC5433945 DOI: 10.14791/btrt.2017.5.1.10] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 02/01/2017] [Accepted: 02/15/2017] [Indexed: 12/11/2022] Open
Abstract
Central neurocytoma (CN) typically presents as an intraventricular mass causing obstructive hydrocephalus. The first line of treatment is surgical resection with adjuvant conventional radiotherapy. Stereotactic radiosurgery (SRS) was proposed as an alternative therapy for CN because of its lower risk profile. The objective of this systematic analysis is to assess the efficacy of SRS for CN. A systematic analysis for CN treated with SRS was conducted in PubMed. Baseline patient characteristics and outcomes data were extracted. Heterogeneity and publication bias were also assessed. Univariate and multivariate linear regressions were used to test for correlations to the primary outcome: local control (LC). The estimated cumulative rate of LC was 92.2% (95% confidence interval: 86.5-95.7%, p<0.001). Mean follow-up time was 62.4 months (range 3-149 months). Heterogeneity and publication bias were insignificant. The univariate linear regression models for both mean tumor volume and mean dose were significantly correlated with improved LC (p<0.001). Our data suggests that SRS may be an effective and safe therapy for CN. However, the rarity of CN still limits the efficacy of a quantitative analysis. Future multi-institutional, randomized trials of CN patients should be considered to further elucidate this therapy.
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Affiliation(s)
- Timothy T Bui
- Department of Neurosurgery, University of California, Los Angeles, CA, USA
| | - Carlito Lagman
- Department of Neurosurgery, University of California, Los Angeles, CA, USA
| | - Lawrance K Chung
- Department of Neurosurgery, University of California, Los Angeles, CA, USA
| | - Stephen Tenn
- Department of Radiation Oncology, University of California, Los Angeles, CA, USA
| | - Percy Lee
- Department of Radiation Oncology, University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA, USA
| | - Robert K Chin
- Department of Radiation Oncology, University of California, Los Angeles, CA, USA
| | - Tania Kaprealian
- Department of Neurosurgery, University of California, Los Angeles, CA, USA.,Department of Radiation Oncology, University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA, USA
| | - Isaac Yang
- Department of Neurosurgery, University of California, Los Angeles, CA, USA.,Department of Radiation Oncology, University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA, USA.,Department of Head and Neck Surgery, University of California, Los Angeles, CA, USA
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