title: Atypical meningioma: a clinicopathological analysis.
abstract: In this retrospective study, 382 operated cases of meningiomas were reviewed. 32 cases (8.3%) were histopathologically classified as atypical meningioma. The anatomical locations and histological features in all the thirty-two cases were correlated with their recurrence rates and biological behaviour. The overall recurrence rate for atypical meningioma within two years was 28% as compared to 9.3% in benign meningiomas. It is being emphasized that an accurate histopathological interpretation of atypical meningioma is essential for predicting the recurrence, biological behavior as well as post-operative management modalities.
authors.affiliation: Departments of Pathology and Neurosurgery, Sree Chitra Thirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, India.
authors.forename: E
authors.initials: E
authors.lastname: Joseph
authors.forename: S
authors.initials: S
authors.lastname: Sandhyamani
authors.forename: M B
authors.initials: MB
authors.lastname: Rao
authors.forename: S
authors.initials: S
authors.lastname: Nair
authors.forename: V V
authors.initials: VV
authors.lastname: Radhakrishnan
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000601:surgery; D008579:Meningioma / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D009336:Necrosis; D009364:Neoplasm Recurrence, Local; D012189:Retrospective Studies