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Atypical meningioma: a clinicopathological analysis
E Joseph1, S Sandhyamani, M B Rao
1Departments of Pathology and Neurosurgery, Sree Chitra Thirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, 695011, India.
Neurology India
|January 9, 2001
Summary
Atypical meningiomas recur more often than benign ones. Accurate histopathological diagnosis is crucial for predicting atypical meningioma recurrence and guiding patient management.
Area of Science:
- Neurosurgery
- Pathology
- Oncology
Background:
- Meningiomas are primary tumors of the meninges.
- Atypical meningiomas represent a distinct subtype with higher recurrence potential.
Purpose of the Study:
- To analyze the recurrence rates and biological behavior of atypical meningiomas.
- To correlate histopathological features and anatomical location with tumor behavior.
Main Methods:
- Retrospective review of 382 operated meningioma cases.
- Histopathological classification of tumors.
- Correlation of tumor characteristics with recurrence data.
Main Results:
- 32 cases (8.3%) were classified as atypical meningioma.
- Atypical meningiomas showed a 28% recurrence rate within two years.
- Benign meningiomas had a 9.3% recurrence rate within the same period.
Conclusions:
- Accurate histopathological interpretation of atypical meningioma is essential.
- Histopathology aids in predicting recurrence and biological behavior.
- Findings guide post-operative management strategies for atypical meningiomas.