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Depond CC, Zouaoui S, Darlix A, Rigau V, Mathieu-Daudé H, Bauchet F, Khettab M, Trétarre B, Figarella-Branger D, Taillandier L, Boetto J, Pallud J, Zemmoura I, Roche PH, Bauchet L. Descriptive epidemiology of 30,223 histopathologically confirmed meningiomas in France: 2006-2015. Acta Neurochir (Wien) 2024; 166:214. [PMID: 38740641 DOI: 10.1007/s00701-024-06093-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 04/13/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND AND OBJECTIVES Meningioma is one of the most common neoplasm of the central nervous system. To describe the epidemiology of meningioma operated in France and, to assess grading and histopathological variability among the different neurosurgical centres. METHODS We processed the French Brain Tumour Database (FBTDB) to conduct a nationwide population-based study of all histopathologically confirmed meningiomas between 2006 and 2015. RESULTS 30,223 meningiomas cases were operated on 28,424 patients, in 61 centres. The average number of meningioma operated per year in France was 3,022 (SD ± 122). Meningioma was 3 times more common in women (74.1% vs. 25.9%). The incidence of meningioma increased with age and, mean age at surgery was 58.5 ± 13.9 years. Grade 1, 2, and 3 meningiomas accounted for 83.9%, 13.91% and, 2.19% respectively. There was a significant variability of meningioma grading by institutions, especially for grade 2 which spanned from 5.1% up to 22.4% (p < 0.001). Moreover, the proportion of grade 2 significantly grew over the study period (p < 0.001). There was also a significant variation in grade 1 subtypes diagnosis among the institutions (p < 0.001). 89.05% of the patients had solely one meningioma surgery, 8.52% two and, 2.43% three or more. The number of surgeries was associated to the grade of malignancy (p < 0.001). CONCLUSION The incidence of meningioma surgery increased with age and, peaked at 58.5 years. They were predominantly benign with meningothelial subtype being the most common. However, there was a significant variation of grade 1 subtypes diagnosis among the centres involved. The proportion of grade 2 meningioma significantly grew over the study time, on contrary to malignant meningioma proportion, which remained rare and, stable over time around 2%. Likewise, there was a significant variability of grade 2 meningioma rate among the institutions.
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Affiliation(s)
- Charles Champeaux Depond
- Department of Neurosurgery, Hôpital Privé Clairval - Ramsay Santé, 317 Bd de Redon, 13009, Marseille, France.
| | - Sonia Zouaoui
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, 34295, Montpellier cedex 5, France
- Institut de Génomique Fonctionnelle (IGF), University of Montpellier, CNRS, INSERM, 34094, Montpellier, France
| | - Amélie Darlix
- Institut de Génomique Fonctionnelle (IGF), University of Montpellier, CNRS, INSERM, 34094, Montpellier, France
- Medical Oncology Department, Institut du Cancer de Montpellier, University of Montpellier, 34298, Montpellier, France
| | - Valérie Rigau
- Institut de Génomique Fonctionnelle (IGF), University of Montpellier, CNRS, INSERM, 34094, Montpellier, France
- Department of Pathology, Gui-de-Chauliac Hospital, Montpellier University Medical Center, 34295, Montpellier cedex 5, France
| | - Hélène Mathieu-Daudé
- Department of Epidemiology, French Brain Tumour Database, GNOLR, Registre Des Tumeurs de L'Hérault, ICM, 34298, Montpellier cedex 5, France
| | - Fabienne Bauchet
- Department of Epidemiology, French Brain Tumour Database, GNOLR, Registre Des Tumeurs de L'Hérault, ICM, 34298, Montpellier cedex 5, France
| | - Mohamed Khettab
- Institut de Génomique Fonctionnelle (IGF), University of Montpellier, CNRS, INSERM, 34094, Montpellier, France
- Medical Oncology Unit, CHU de La Réunion, Université de La Réunion, 97410, Saint Pierre, France
| | - Brigitte Trétarre
- Registre Des Tumeurs de L'Hérault, ICM, 34298, Montpellier cedex 5, France
| | - Dominique Figarella-Branger
- Institut de Neurophysiopathologie, Service d'Anatomie Pathologique Et de Neuropathologie, Aix-Marseille University, APHM, CNRS, INP, CHU Timone, 13005, Marseille, France
| | - Luc Taillandier
- Department of Neurology, University Hospital of Nancy, Nancy, France
| | - Julien Boetto
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, 34295, Montpellier cedex 5, France
- Institut de Génomique Fonctionnelle (IGF), University of Montpellier, CNRS, INSERM, 34094, Montpellier, France
- Paris Brain Institute, Sorbonne Université, CRICM INSERM U1127 CNRS UMR 7225, 75013, Paris, France
| | - Johan Pallud
- Service de Neurochirurgie, GHU Paris Psychiatrie Et Neurosciences, Site Sainte Anne, 75014, Paris, France
- Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014, Paris, France
| | - Ilyess Zemmoura
- Neurosurgery Department, CHRU de Tours, Tours, France
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
| | - Pierre-Hugues Roche
- Neurosurgery Department, CHRU de Tours, Tours, France
- UMR 1253, iBrain, Université de Tours, Inserm, Tours, France
- Service de Neurochirurgie de L'hôpital Nord, APHM - AMU, Marseille, France
| | - Luc Bauchet
- Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, 34295, Montpellier cedex 5, France
- Institut de Génomique Fonctionnelle (IGF), University of Montpellier, CNRS, INSERM, 34094, Montpellier, France
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Sehring J, Dohmen H, Selignow C, Schmid K, Grau S, Stein M, Uhl E, Mukhopadhyay A, Németh A, Amsel D, Acker T. Leveraging Attention-Based Convolutional Neural Networks for Meningioma Classification in Computational Histopathology. Cancers (Basel) 2023; 15:5190. [PMID: 37958364 PMCID: PMC10647687 DOI: 10.3390/cancers15215190] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Convolutional neural networks (CNNs) are becoming increasingly valuable tools for advanced computational histopathology, promoting precision medicine through exceptional visual decoding abilities. Meningiomas, the most prevalent primary intracranial tumors, necessitate accurate grading and classification for informed clinical decision-making. Recently, DNA methylation-based molecular classification of meningiomas has proven to be more effective in predicting tumor recurrence than traditional histopathological methods. However, DNA methylation profiling is expensive, labor-intensive, and not widely accessible. Consequently, a digital histology-based prediction of DNA methylation classes would be advantageous, complementing molecular classification. In this study, we developed and rigorously assessed an attention-based multiple-instance deep neural network for predicting meningioma methylation classes using tumor methylome data from 142 (+51) patients and corresponding hematoxylin-eosin-stained histological sections. Pairwise analysis of sample cohorts from three meningioma methylation classes demonstrated high accuracy in two combinations. The performance of our approach was validated using an independent set of 51 meningioma patient samples. Importantly, attention map visualization revealed that the algorithm primarily focuses on tumor regions deemed significant by neuropathologists, offering insights into the decision-making process of the CNN. Our findings highlight the capacity of CNNs to effectively harness phenotypic information from histological sections through computerized images for precision medicine. Notably, this study is the first demonstration of predicting clinically relevant DNA methylome information using computer vision applied to standard histopathology. The introduced AI framework holds great potential in supporting, augmenting, and expediting meningioma classification in the future.
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Affiliation(s)
- Jannik Sehring
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
| | - Hildegard Dohmen
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
| | - Carmen Selignow
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
| | - Kai Schmid
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
| | - Stefan Grau
- Department of Neurosurgery, Hospital Fulda, Pacelliallee 4, D-36043 Fulda, Germany
| | - Marco Stein
- Department of Neurosurgery, University Hospital Gießen, Klinikstr. 33, D-35392 Giessen, Germany
| | - Eberhard Uhl
- Department of Neurosurgery, University Hospital Gießen, Klinikstr. 33, D-35392 Giessen, Germany
| | - Anirban Mukhopadhyay
- Department of Computer Science, Technical University of Darmstadt, Fraunhoferstraße 5, D-64283 Darmstadt, Germany
| | - Attila Németh
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
| | - Daniel Amsel
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
| | - Till Acker
- Institute of Neuropathology, Justus Liebig University Giessen, Arndtstr. 16, D-35392 Giessen, Germany; (J.S.)
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Maity S, Nauhria S, Nayak N, Nauhria S, Coffin T, Wray J, Haerianardakani S, Sah R, Spruce A, Jeong Y, Maj MC, Sharma A, Okpara N, Ike CJ, Nath R, Nelson J, Parwani AV. Virtual Versus Light Microscopy Usage among Students: A Systematic Review and Meta-Analytic Evidence in Medical Education. Diagnostics (Basel) 2023; 13:diagnostics13030558. [PMID: 36766660 PMCID: PMC9914930 DOI: 10.3390/diagnostics13030558] [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] [Received: 07/19/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The usage of whole-slide images has recently been gaining a foothold in medical education, training, and diagnosis. OBJECTIVES The first objective of the current study was to compare academic performance on virtual microscopy (VM) and light microscopy (LM) for learning pathology, anatomy, and histology in medical and dental students during the COVID-19 period. The second objective was to gather insight into various applications and usage of such technology for medical education. MATERIALS AND METHODS Using the keywords "virtual microscopy" or "light microscopy" or "digital microscopy" and "medical" and "dental" students, databases (PubMed, Embase, Scopus, Cochrane, CINAHL, and Google Scholar) were searched. Hand searching and snowballing were also employed for article searching. After extracting the relevant data based on inclusion and execution criteria, the qualitative data were used for the systematic review and quantitative data were used for meta-analysis. The Newcastle Ottawa Scale (NOS) scale was used to assess the quality of the included studies. Additionally, we registered our systematic review protocol in the prospective register of systematic reviews (PROSPERO) with registration number CRD42020205583. RESULTS A total of 39 studies met the criteria to be included in the systematic review. Overall, results indicated a preference for this technology and better academic scores. Qualitative analyses reported improved academic scores, ease of use, and enhanced collaboration amongst students as the top advantages, whereas technical issues were a disadvantage. The performance comparison of virtual versus light microscopy meta-analysis included 19 studies. Most (10/39) studies were from medical universities in the USA. VM was mainly used for teaching pathology courses (25/39) at medical schools (30/39). Dental schools (10/39) have also reported using VM for teaching microscopy. The COVID-19 pandemic was responsible for the transition to VM use in 17/39 studies. The pooled effect size of 19 studies significantly demonstrated higher exam performance (SMD: 1.36 [95% CI: 0.75, 1.96], p < 0.001) among the students who used VM for their learning. Students in the VM group demonstrated significantly higher exam performance than LM in pathology (SMD: 0.85 [95% CI: 0.26, 1.44], p < 0.01) and histopathology (SMD: 1.25 [95% CI: 0.71, 1.78], p < 0.001). For histology (SMD: 1.67 [95% CI: -0.05, 3.40], p = 0.06), the result was insignificant. The overall analysis of 15 studies assessing exam performance showed significantly higher performance for both medical (SMD: 1.42 [95% CI: 0.59, 2.25], p < 0.001) and dental students (SMD: 0.58 [95% CI: 0.58, 0.79], p < 0.001). CONCLUSIONS The results of qualitative and quantitative analyses show that VM technology and digitization of glass slides enhance the teaching and learning of microscopic aspects of disease. Additionally, the COVID-19 global health crisis has produced many challenges to overcome from a macroscopic to microscopic scale, for which modern virtual technology is the solution. Therefore, medical educators worldwide should incorporate newer teaching technologies in the curriculum for the success of the coming generation of health-care professionals.
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Affiliation(s)
- Sabyasachi Maity
- Department of Physiology, Neuroscience, and Behavioral Sciences, St. George’s University School of Medicine, St. George’s, Grenada
| | - Samal Nauhria
- Department of Pathology, St. Matthews University School of Medicine, Georgetown P.O. Box 30992, Cayman Islands
- Correspondence:
| | - Narendra Nayak
- Department of Microbiology, St. Matthews University School of Medicine, Georgetown P.O. Box 30992, Cayman Islands
| | - Shreya Nauhria
- Department of Psychology, University of Leicester, Leicester LE1 7RH, UK
| | - Tamara Coffin
- Medical Student Research Institute, St. George’s University School of Medicine, St. George’s, Grenada
| | - Jadzia Wray
- Medical Student Research Institute, St. George’s University School of Medicine, St. George’s, Grenada
| | - Sepehr Haerianardakani
- Medical Student Research Institute, St. George’s University School of Medicine, St. George’s, Grenada
| | - Ramsagar Sah
- Department of Public Health, Torrens University, Ultimo, Sydney, NSW 2007, Australia
| | - Andrew Spruce
- Department of Pathology, St. Matthews University School of Medicine, Georgetown P.O. Box 30992, Cayman Islands
| | - Yujin Jeong
- Department of Clinical Medicine, American University of Antigua, St. John’s, Antigua and Barbuda
| | - Mary C. Maj
- Department of Biochemistry, St. George’s University School of Medicine, St. George’s, Grenada
| | - Abhimanyu Sharma
- Department of Pathology, Government Medical College, Jammu 180001, India
| | - Nicole Okpara
- Department of Pathology, St. Matthews University School of Medicine, Georgetown P.O. Box 30992, Cayman Islands
| | - Chidubem J. Ike
- Department of Clinical Medicine, American University of Antigua, St. John’s, Antigua and Barbuda
| | - Reetuparna Nath
- Department of Education Service, St. George’s University, St. George’s, Grenada
| | - Jack Nelson
- Medical Illustrator, The Centre for Biomedical Visualization, St. George’s University, St. George’s, Grenada
| | - Anil V. Parwani
- Department of Pathology, Wexner Medical Center, The Ohio State University, Cooperative Human Tissue Network (CHTN) Midwestern Division, Columbus, OH 43210, USA
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Rizzo PC, Girolami I, Marletta S, Pantanowitz L, Antonini P, Brunelli M, Santonicco N, Vacca P, Tumino N, Moretta L, Parwani A, Satturwar S, Eccher A, Munari E. Technical and Diagnostic Issues in Whole Slide Imaging Published Validation Studies. Front Oncol 2022; 12:918580. [PMID: 35785212 PMCID: PMC9246412 DOI: 10.3389/fonc.2022.918580] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/24/2022] [Indexed: 01/07/2023] Open
Abstract
ObjectiveDigital pathology with whole-slide imaging (WSI) has many potential clinical and non-clinical applications. In the past two decades, despite significant advances in WSI technology adoption remains slow for primary diagnosis. The aim of this study was to identify common pitfalls of WSI reported in validation studies and offer measures to overcome these challenges.MethodsA systematic search was conducted in the electronic databases Pubmed-MEDLINE and Embase. Inclusion criteria were all validation studies designed to evaluate the feasibility of WSI for diagnostic clinical use in pathology. Technical and diagnostic problems encountered with WSI in these studies were recorded.ResultsA total of 45 studies were identified in which technical issues were reported in 15 (33%), diagnostic issues in 8 (18%), and 22 (49%) reported both. Key technical problems encompassed slide scan failure, prolonged time for pathologists to review cases, and a need for higher image resolution. Diagnostic challenges encountered were concerned with grading dysplasia, reliable assessment of mitoses, identification of microorganisms, and clearly defining the invasive front of tumors.ConclusionDespite technical advances with WSI technology, some critical concerns remain that need to be addressed to ensure trustworthy clinical diagnostic use. More focus on the quality of the pre-scanning phase and training of pathologists could help reduce the negative impact of WSI technical difficulties. WSI also seems to exacerbate specific diagnostic tasks that are already challenging among pathologists even when examining glass slides with conventional light microscopy.
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Affiliation(s)
- Paola Chiara Rizzo
- Department of Pathology and Diagnostics and Public Health, Section of Pathology, University Hospital of Verona, Verona, Italy
| | | | - Stefano Marletta
- Department of Pathology and Diagnostics and Public Health, Section of Pathology, University Hospital of Verona, Verona, Italy
- Department of Pathology, Pederzoli Hospital, Peschiera del Garda, Italy
| | - Liron Pantanowitz
- Department of Pathology & Clinical Labs, University of Michigan, Ann Arbor, MI, United States
| | - Pietro Antonini
- Department of Pathology and Diagnostics and Public Health, Section of Pathology, University Hospital of Verona, Verona, Italy
| | - Matteo Brunelli
- Department of Pathology and Diagnostics and Public Health, Section of Pathology, University Hospital of Verona, Verona, Italy
| | - Nicola Santonicco
- Department of Pathology and Diagnostics and Public Health, Section of Pathology, University Hospital of Verona, Verona, Italy
| | - Paola Vacca
- Bambino Gesù Children’s Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Nicola Tumino
- Bambino Gesù Children’s Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Lorenzo Moretta
- Bambino Gesù Children’s Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Anil Parwani
- Department of Pathology, Ohio State University Medical Center, Columbus, OH, United States
| | - Swati Satturwar
- Department of Pathology, Ohio State University Medical Center, Columbus, OH, United States
| | - Albino Eccher
- Department of Pathology and Diagnostics, University and Hospital Trust of Verona, Verona, Italy
- *Correspondence: Albino Eccher,
| | - Enrico Munari
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
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Kusta O, Rift CV, Risør T, Santoni-Rugiu E, Brodersen JB. Lost in digitization – A systematic review about the diagnostic test accuracy of digital pathology solutions. J Pathol Inform 2022; 13:100136. [PMID: 36268077 PMCID: PMC9577136 DOI: 10.1016/j.jpi.2022.100136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 10/25/2022] Open
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Computer-aided decision-making system for endometrial atypical hyperplasia based on multi-modal and multi-instance deep convolution neural networks. Soft comput 2021. [DOI: 10.1007/s00500-021-06576-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kwon SM, Kim JH, Kim YH, Hong SH, Cho YH, Kim CJ, Nam SJ. Clinical Implications of the Mitotic Index as a Predictive Factor for Malignant Transformation of Atypical Meningiomas. J Korean Neurosurg Soc 2021; 65:297-306. [PMID: 34879641 PMCID: PMC8918253 DOI: 10.3340/jkns.2021.0114] [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: 05/10/2021] [Accepted: 08/23/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Intracranial atypical meningiomas have a poor prognosis and high rates of recurrence. Moreover, up to one-third of the recurrences undergo high-grade transformation into malignant meningiomas. We aimed to investigate the clinical factors that can predict the propensity of malignant transformation from atypical to anaplastic meningiomas. Methods Between 2001 and 2018, all patients with atypical meningioma, in whom the tumors had undergone malignant transformation to anaplastic meningioma, were included. The patients' medical records documenting the diagnosis of atypical meningioma prior to malignant transformation were reviewed to identify the predictors of transformation. The control group comprised 56 patients with atypical meningiomas who were first diagnosed between January 2017 and December 2018 and had no malignant transformation. Results Nine patients in whom the atypical meningiomas underwent malignant transformation were included. The median time interval from diagnosis of atypical meningioma to malignant transformation was 19 months (range, 7-78). The study group showed a significant difference in heterogeneous enhancement (77.8% vs. 33.9%), bone invasion (55.6% vs. 12.5%), mitotic index (MI; 14.8±4.9 vs. 3.5±3.9), and Ki-67 index (20.7±13.9 vs. 9.5±7.1) compared with the control group. In multivariate analysis, increased MI (odds ratio, 1.436; 95% confidence interval, 1.127-1.900; p=0.004) was the only significant factor for predicting malignant transformation. Conclusion An increased MI within atypical meningiomas might be used as a predictor of malignant transformation. Tumors at high risk for malignant transformation might require more attentive surveillance and management than other atypical meningiomas.
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Affiliation(s)
- Sae Min Kwon
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Jeong Hoon Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Hoon Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seok Ho Hong
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Hyun Cho
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Jin Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soo Jeong Nam
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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