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Gates S, Hackman DE, Agarwal N, Zhang W, Barnard P, White JR. Postoperative Neurologic Outcome in Patients Undergoing Resective Surgery for Parietal Lobe Epilepsy: A Systematic Review. Neurology 2024; 102:e209322. [PMID: 38815235 DOI: 10.1212/wnl.0000000000209322] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Parietal lobe epilepsy (PLE) surgery can be an effective treatment for selected patients with intractable epilepsy but can be associated with the risk of serious neurologic deficits. We performed a systematic review of the literature to obtain a comprehensive summary of the frequency and types of new postoperative neurologic deficits in patients undergoing PLE resective surgery. METHODS We searched MEDLINE, Embase, and Cochrane Central Register of Controlled Trials for articles published between January 1, 1990, and April 28, 2022. We included studies that reported postoperative neurologic outcome following PLE resective surgery confined to the parietal lobe. We required that studies included ≥5 patients. The data collected included demographic information and specific details of postoperative neurologic deficits. When available, individual patient data were collected. We used the Risk of Bias in Nonrandomized Studies of Interventions tool to assess the risk of bias and Grading of Recommendations Assessment, Development, and Evaluation to assess the quality of the evidence. RESULTS Of the 3,461 articles screened, 33 studies met the inclusion criteria. A total of 370 patients were included. One hundred patients (27.0%) had a new deficit noted postoperatively. Approximately half of the patients with deficits experienced only transient deficits. Motor deficits were the most commonly identified deficit. The rates of motor deficits noted after PLE surgery were 5.7%, 3.2%, and 2.2% for transient, long-term, and duration not specified, respectively. Sensory and visual field deficits were also commonly reported. Gerstmann syndrome was noted postoperatively in 4.9% of patients and was almost always transient. Individual patient data added information on parietal lobe subregion postoperative neurologic outcome. DISCUSSION Our systematic review provides a comprehensive summary of the frequency and types of neurologic deficits associated with PLE surgery. A significant percentage of postoperative deficits are transient. In addition to the expected sensory and visual deficits, PLE surgery is associated with a notable risk of motor deficits. The available literature has important deficiencies. Our study highlights gaps in the literature and provides recommendations for future directions. TRIAL REGISTRATION INFORMATION This systematic review was registered on PROSPERO (CRD42022313108, May 26, 2022).
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Affiliation(s)
- Stuart Gates
- From the University of Minnesota Medical School (S.G.), Minneapolis, MN; Dr. Martin Luther King, Jr. Library (D.E.H.), San José State University, San José, CA; Pediatric Epileptology (N.A.), Minnesota Epilepsy Group, Roseville; Pediatric Epileptology (N.A.), Children's Minnesota, Minneapolis; Neurology (W.Z., J.R.W.), Minnesota Epilepsy Group, Roseville; Neurology (W.Z.), United Hospital of Allina Health, St. Paul; Allina Health (P.B.); Center for Orphan Drug Research (J.R.W.), University of Minnesota; and Epileptology (J.R.W.), Abbott Northwestern Hospital, Minneapolis, MN
| | - Dawn E Hackman
- From the University of Minnesota Medical School (S.G.), Minneapolis, MN; Dr. Martin Luther King, Jr. Library (D.E.H.), San José State University, San José, CA; Pediatric Epileptology (N.A.), Minnesota Epilepsy Group, Roseville; Pediatric Epileptology (N.A.), Children's Minnesota, Minneapolis; Neurology (W.Z., J.R.W.), Minnesota Epilepsy Group, Roseville; Neurology (W.Z.), United Hospital of Allina Health, St. Paul; Allina Health (P.B.); Center for Orphan Drug Research (J.R.W.), University of Minnesota; and Epileptology (J.R.W.), Abbott Northwestern Hospital, Minneapolis, MN
| | - Nitin Agarwal
- From the University of Minnesota Medical School (S.G.), Minneapolis, MN; Dr. Martin Luther King, Jr. Library (D.E.H.), San José State University, San José, CA; Pediatric Epileptology (N.A.), Minnesota Epilepsy Group, Roseville; Pediatric Epileptology (N.A.), Children's Minnesota, Minneapolis; Neurology (W.Z., J.R.W.), Minnesota Epilepsy Group, Roseville; Neurology (W.Z.), United Hospital of Allina Health, St. Paul; Allina Health (P.B.); Center for Orphan Drug Research (J.R.W.), University of Minnesota; and Epileptology (J.R.W.), Abbott Northwestern Hospital, Minneapolis, MN
| | - Wenbo Zhang
- From the University of Minnesota Medical School (S.G.), Minneapolis, MN; Dr. Martin Luther King, Jr. Library (D.E.H.), San José State University, San José, CA; Pediatric Epileptology (N.A.), Minnesota Epilepsy Group, Roseville; Pediatric Epileptology (N.A.), Children's Minnesota, Minneapolis; Neurology (W.Z., J.R.W.), Minnesota Epilepsy Group, Roseville; Neurology (W.Z.), United Hospital of Allina Health, St. Paul; Allina Health (P.B.); Center for Orphan Drug Research (J.R.W.), University of Minnesota; and Epileptology (J.R.W.), Abbott Northwestern Hospital, Minneapolis, MN
| | - Pamela Barnard
- From the University of Minnesota Medical School (S.G.), Minneapolis, MN; Dr. Martin Luther King, Jr. Library (D.E.H.), San José State University, San José, CA; Pediatric Epileptology (N.A.), Minnesota Epilepsy Group, Roseville; Pediatric Epileptology (N.A.), Children's Minnesota, Minneapolis; Neurology (W.Z., J.R.W.), Minnesota Epilepsy Group, Roseville; Neurology (W.Z.), United Hospital of Allina Health, St. Paul; Allina Health (P.B.); Center for Orphan Drug Research (J.R.W.), University of Minnesota; and Epileptology (J.R.W.), Abbott Northwestern Hospital, Minneapolis, MN
| | - James R White
- From the University of Minnesota Medical School (S.G.), Minneapolis, MN; Dr. Martin Luther King, Jr. Library (D.E.H.), San José State University, San José, CA; Pediatric Epileptology (N.A.), Minnesota Epilepsy Group, Roseville; Pediatric Epileptology (N.A.), Children's Minnesota, Minneapolis; Neurology (W.Z., J.R.W.), Minnesota Epilepsy Group, Roseville; Neurology (W.Z.), United Hospital of Allina Health, St. Paul; Allina Health (P.B.); Center for Orphan Drug Research (J.R.W.), University of Minnesota; and Epileptology (J.R.W.), Abbott Northwestern Hospital, Minneapolis, MN
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Osman AM, Çiftçi U, Sever N. Supratentorial extra-axial anaplastic ependymoma: a rare case report. Ann Med Surg (Lond) 2023; 85:5634-5640. [PMID: 37915672 PMCID: PMC10617858 DOI: 10.1097/ms9.0000000000000536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 03/18/2023] [Indexed: 11/03/2023] Open
Abstract
Introduction and importance Ependymomas are central nervous system tumors arising from the ependymal lining of the ventricle and spinal cord. Supratentorial extra-axial ependymomas are very rare, most commonly affecting the pediatric population and rarely in adults. Case presentation The authors report a case of a 71-year-old female with a headache and blurred vision. An MRI scan revealed a lesion at the parafalcine region of the occipital lobe. A parieto-occipital craniotomy was performed. When the dura was opened during the operation, the extra-axially located, well-circumscribed, dirty yellow-white tumor dissected from the surrounding tissue was excised entirely by microdissection. Histopathological examination revealed supratentorial extra-axial anaplastic ependymoma. The patient received postoperative radiation therapy (54 Gray over 30 fractions). No recurrence of the tumor was observed during the 4-year follow-up. Discussion Supratentorial ependymomas at the extra-axial region are uncommon; extra-axial anaplastic ependymoma and meningiomas have similar radiological findings, such as a dural tail, subarachnoid plane, and diffuse enhancement after contrast injection. This close similarity might cause misdiagnoses. Total surgical resection was followed by adjuvant radiotherapy and close follow-up in the gold standard of the treatment. Conclusion The authors report a rare case of anaplastic ependymomas located at the extra-axial region. Anaplastic tumors are prone to recurrence despite total resection and radiation therapy; hence, a close follow-up is warranted.
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Affiliation(s)
- Abukar Mahamed Osman
- Mogadishu Somalia Turkish Training and Research Hospital, Mogadishu, Somalia
- Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - Ulvi Çiftçi
- Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
| | - Nurten Sever
- Istanbul Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey
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Cuoco JA, Strohman AC, Stopa BM, Stump MS, Entwistle JJ, Witcher MR, Olasunkanmi AL. Supratentorial cortical ependymoma: A systematic literature review and case illustration. Rare Tumors 2022; 14:20363613221112432. [PMID: 35836750 PMCID: PMC9274435 DOI: 10.1177/20363613221112432] [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: 03/07/2022] [Accepted: 06/10/2022] [Indexed: 11/26/2022] Open
Abstract
Cortical ependymomas are currently not considered a subgroup of supratentorial
ependymomas; however, there is a growing body of literature investigating the
natural history of these lesions compared to supratentorial ependymomas. We
performed a systematic literature review of cortical ependymomas with a focus on
the natural history, clinical characteristics, and clinical outcomes of these
lesions as compared to supratentorial ependymomas. Our search revealed 153
unique cases of cortical ependymomas. The mean age on presentation was
21.2 years. Males and females comprised 58.8% (90/153) and 41.2% (63/153) of
cases, respectively. The most common presenting symptom was seizure activity
occurring in 44.4% of the cohort (68/153). The recently recognized
C11orf95-RELA fusion was identified in 13.7% of the cohort
(21/153) and 95.5% of cases (21/22) reporting molecular characterization. World
Health Organization grades 2 and 3 were reported in 52.3% (79/151) and 47.7%
(72/151) of cases, respectively. The frontal lobe was involved in the majority
of cases (54.9%, 84/153). Gross total resection was achieved in 80.4% of cases
(123/153). Tumor recurrence was identified in 27.7% of cases (39/141). Mean
clinical follow-up was 41.3 months. Mean overall survival of patients who
expired was 27.4 months whereas mean progression-free survival was 15.0 months.
Comparatively, cortical ependymomas with
C11orf95-RELA fusions and supratentorial
ependymomas with C11orf95 RELA fusions exhibited differing
clinical outcomes. Further studies with larger sample sizes are necessary to
investigate the significance of RELA fusions on survival in
cortical ependymomas and to determine whether cortical ependymomas with
C11orf95-RELA fusions should be classified
as a distinct entity.
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Affiliation(s)
- Joshua A Cuoco
- Section of Neurosurgery, Carilion Clinic, Roanoke, VA, USA.,School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.,Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Andrew C Strohman
- Section of Neurosurgery, Carilion Clinic, Roanoke, VA, USA.,Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Brittany M Stopa
- Section of Neurosurgery, Carilion Clinic, Roanoke, VA, USA.,Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Michael S Stump
- Virginia Tech Carilion School of Medicine, Roanoke, VA, USA.,Department of Pathology, Carilion Clinic, Roanoke, VA, USA
| | - John J Entwistle
- Section of Neurosurgery, Carilion Clinic, Roanoke, VA, USA.,School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.,Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Mark R Witcher
- Section of Neurosurgery, Carilion Clinic, Roanoke, VA, USA.,School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.,Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
| | - Adeolu L Olasunkanmi
- Section of Neurosurgery, Carilion Clinic, Roanoke, VA, USA.,School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.,Virginia Tech Carilion School of Medicine, Roanoke, VA, USA
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Supratentorial Extraventricular Ependymomas: Imaging Features and the Added Value of Apparent Diffusion Coefficient. J Comput Assist Tomogr 2021; 45:463-471. [PMID: 34297516 DOI: 10.1097/rct.0000000000001164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To improve the understanding and the diagnosis of intracranial ependymal tumors. METHODS The clinical, radiological and prognostic features of 48 supratentorial extraventricular ependymomas and 74 intraventricular ependymomas were summarized and compared. RESULTS Supratentorial extraventricular ependymomas, most often located in the frontal lobe (33.3%) and classified as grade III (75.0%), had relatively large eccentric cysts (3.07 ± 2.03 cm), significant enhancement (84.8%), low apparent diffusion coefficient (ADC) values, and associated with higher mortality (41.3%). The majority of intraventricular lesions occurred in the fourth ventricle (86.5%) and classified as grade II (78.4%), had relatively small and multiple cystic changes (1.04 ± 0.87 cm), slight or moderate enhancement (76.9%), high ADC values and associated with lower mortality (20.7%). There were few significant differences between grade II and grade III tumors in these 2 groups, respectively. Young age, high grade and low ADC values are worse prognostic indicators for patients with supratentorial extraventricular ependymomas, but not for those with intraventricular ependymomas. CONCLUSIONS Conventional radiological features, combined with clinical manifestations and quantitative information provided by diffusion-weighted imaging, may not only enhance the diagnosis and assist in determining prognosis but also provide a better pathophysiological understanding of intracranial ependymal tumors.
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Wang Q, Cheng J, Li J, Zhang S, Liu W, Ju Y, Hui X. The Survival and Prognostic Factors of Supratentorial Cortical Ependymomas: A Retrospective Cohort Study and Literature-Based Analysis. Front Oncol 2020; 10:1585. [PMID: 32974195 PMCID: PMC7472988 DOI: 10.3389/fonc.2020.01585] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/23/2020] [Indexed: 02/05/2023] Open
Abstract
Aim Survival rates and prognostic factors of cortical ependymomas (CEs) remain elusive. This study aimed to perform a comprehensive analysis of prognostic factors, treatment, and outcomes for patients with CEs based on institutional and literature case series. Materials and Methods Thirty patients with CEs from our department were included in this study. Furthermore, a systemic review of the literature yielded an additional 106 patients with CEs. Clinical data including patient age, sex, symptoms, tumor location, World Health Organization (WHO) grade, extent of surgery, radiation, recurrence, and survival were recorded and statistically analyzed. Results From January 2009 to October 2019, 30 (4.2%) cases were diagnosed as CEs in our department. These series consisted of 19 males and 11 females, 10 continuous patients after 2017 screened for C11orf95-RELA fusion, and 9 patients (90%) were RELA fusion positive. During the follow-up period, nine (30%) patients depicted tumor recurrence or progression; four (13.3%) patients died of tumor progression. The literature review yielded 106 CE cases, with additional 30 cases of our own collected for further analysis. Of these 136 cases, the frontal lobe (40%) was the most common location, and the average age was 22.6 ± 17.6 years. Anaplastic histology/WHO grade III tumors were identified in 68 (50%) patients. Statistically analysis demonstrated that extent of surgery and WHO tumor grade were significant prognostic factors in Kaplan–Meier log-rank testing and Cox proportional hazards models. Gross total resection (GTR) predicted longer progression-free survival (PFS) [P = 0.013, hazard ratio (HR) = 3.012, 95% confidence interval (CI) = 1.257–7.213] and overall survival (OS) (P = 0.003, HR = 5.322, 95% CI = 1.751–16.178). WHO grade III tumors had worse PFS (P = 0.002, HR = 5.17, 95% CI = 1.804–14.816) and OS (P = 0.025, HR = 5.640, 95% CI = 1.248–25.495). Conclusion CEs accounted for only 3.5 to 5.7% of ependymomas, with seizures the most common symptom and the frontal lobe the most frequent location. CEs may have higher rate of RELA fusions, but generally favorable prognosis. The extent of surgery and WHO tumor grade were significant prognostic factors for PFS and OS in multivariate analysis. GTTR or WHO grade II tumors had better overall outcome in patients with CEs.
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Affiliation(s)
- Qiguang Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jian Cheng
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jiuhong Li
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Si Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Wenke Liu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Ju
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xuhui Hui
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
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Batur A, Topaloğlu ÖF. Fahr’s disease associated with anaplastic ependymoma: a case report and review of the literature. Br J Neurosurg 2020:1-4. [DOI: 10.1080/02688697.2020.1817318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Abdussamet Batur
- Faculty of Medicine, Department of Radiology, Selcuk University, Konya, Turkey
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Wang Q, Cheng J, Zhang S, Li Q, Hui X, Ju Y. Supratentorial pediatric cortical ependymomas: a comprehensive retrospective study. Neurosurg Rev 2020; 44:1543-1551. [PMID: 32607870 DOI: 10.1007/s10143-020-01336-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/01/2020] [Accepted: 06/12/2020] [Indexed: 02/04/2023]
Abstract
Pediatric cortical ependymomas (CEs) are rare; the clinical features and optimal treatment remain ill-defined. We aimed to clarify the clinical characteristics and outcome of pediatric CEs based on institutional series and literature review. Thirteen children with CEs from our department were included in the present study. Furthermore, a search of English language peer-reviewed articles yielded 43 patients with CEs. The clinical data, treatment, and outcome were retrospectively reviewed and statistically analyzed. Our institutional series consisted of nine males and four females. The literature review yielded 56 pediatric CE cases (including ours) for further analysis. Of these 56 cases, frontal lobe (n = 19, 41.3%) was the most common location and most of the tumors were located in the right hemisphere (n = 27, 58.7%). Seizures (n = 23, 41.1%) were the most frequent preoperative symptoms. Thirty patients (n = 30, 53.6%) were WHO grade II. Five continuous patients in our series screened for C11orf95-RELA fusion and all the patients (100%) were RELA fusion positive. Fourteen (26.4%) patients experienced tumor recurrence and 4 (7.5%) patients died during the follow-up. Multivariate survival analysis depicted extent of surgery resection was the only prognostic factor for PFS and patient with gross total resection (P = 0.037, HR 3.682, 95% CI 1.082-13.79) had longer PFS. Furthermore, Log-rank testing for Kaplan-Meier survival analysis showed the extent of surgery resection (P = 0.007) was the only prognostic factor for OS. Pediatric CEs are rare, commonly seen in frontal lobe and right hemisphere. Seizures are the most common symptoms. They may have higher rate of RELA fusions, but favorable outcome. A low incidence of anaplastic histology has been depicted. Gross total resection is significantly associated with longer PFS and OS. Careful follow-up is necessary because the tumors may progress.
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Affiliation(s)
- Qiguang Wang
- Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu, 610041, Sichuan, China
| | - Jian Cheng
- Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu, 610041, Sichuan, China
| | - Si Zhang
- Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu, 610041, Sichuan, China
| | - Qiang Li
- Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu, 610041, Sichuan, China
| | - Xuhui Hui
- Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu, 610041, Sichuan, China
| | - Yan Ju
- Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu, 610041, Sichuan, China.
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Senthilvelan S, Kandasamy S, Chandrasekharan K, Thomas B, An D. Unusual imaging appearance of a rare cortical ependymoma mimicking angiocentric glioma. Neurol Sci 2020; 41:1935-1938. [PMID: 32239344 DOI: 10.1007/s10072-020-04364-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 03/20/2020] [Indexed: 11/28/2022]
Abstract
Cortical ependymomas are uncommon lesions. We report a cortical ependymoma displaying an unusual imaging pattern. The lesion demonstrated a T1 hyperintense rim and limited perilesional edema but lacked contrast enhancement. T1 hyperintense rim and stalk-like ventricular extension of FLAIR hyperintensity have previously been considered pathognomonic of angiocentric glioma. Hence, we conclude that the radiologists should be aware of this uncommon imaging pattern of cortical ependymoma. The condition warrants prompt surgical management in view of the increased potential for higher grade transformation, unlike grade I roman numeral may be given angiocentric gliomas.
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Affiliation(s)
- Santhakumar Senthilvelan
- Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal, Institute for Medical Sciences and Technology, Trivandrum, Kerala, 695011, India.
| | - Sathish Kandasamy
- Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal, Institute for Medical Sciences and Technology, Trivandrum, Kerala, 695011, India
| | - Kesavadas Chandrasekharan
- Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal, Institute for Medical Sciences and Technology, Trivandrum, Kerala, 695011, India
| | - Bejoy Thomas
- Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal, Institute for Medical Sciences and Technology, Trivandrum, Kerala, 695011, India
| | - Deepti An
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
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Matsumoto Y, Ichikawa T, Kurozumi K, Otani Y, Date I. Clinicopathological and Genetic Features of Supratentorial Cortical Ependymomas. World Neurosurg 2019; 129:e417-e428. [PMID: 31150846 DOI: 10.1016/j.wneu.2019.05.166] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/19/2019] [Accepted: 05/20/2019] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Supratentorial cortical ependymomas (CEs) are rare. These lesions, selectively occurring in the superficial cortex, have not been fully characterized. We analyzed the clinicopathological and genetic features of CEs. METHODS Eight patients with CEs from our institution and 84 other reported CE cases were included in the present study. We retrospectively reviewed their clinical characteristics, imaging findings, treatment methods, pathological features, molecular status, and clinical outcomes. RESULTS The median age at diagnosis of our 8 patients was 7.5 years. The mean tumor diameter was 70 mm. All the tumors had a cystic appearance, and calcification was observed in 6. Gross total resection was achieved in 6 patients and subtotal resection in 2 patients. Of the 8 tumors, 7 were World Health Organization grade III and 1 was World Health Organization grade II. Six tumors were immunopositive for L1 cell adhesion molecule (L1CAM). We investigated the presence of C11orf95-RELA fusion in 5 patients, all of whom exhibited it. Postoperative radiotherapy was performed for all patients with grade III tumors, except for children aged <3 years. Although 4 patients developed recurrence, all were alive throughout the follow-up period. Compared with previously reported CEs, our patients were younger and had larger tumors; however, the clinical outcomes did not differ significantly. CONCLUSIONS Although most CEs in our group were immunopositive for L1CAM and showed C11orf95-RELA fusion, which have been associated with a poor prognosis in supratentorial ependymomas, all our patients had good outcomes. Gross total resection and adjuvant radiotherapy contributed to the relatively favorable prognosis of CEs compared with other supratentorial ependymomas.
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Affiliation(s)
- Yuji Matsumoto
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Tomotsugu Ichikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan; Department of Neurosurgery, Kagawa Prefectural Central Hospital, Takamatsu, Japan.
| | - Kazuhiko Kurozumi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Yoshihiro Otani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan; Department of Neurosurgery, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Isao Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Okayama, Japan
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