Recurrence of meningiomas after operation

Area of Science:

• Neurosurgery
• Oncology
• Pathology

Background:

• Meningiomas are primary tumors of the central nervous system.
• Surgical resection is the primary treatment for meningiomas.
• Understanding recurrence factors is crucial for patient management.

Purpose of the Study:

• To identify factors predicting meningioma recurrence after surgical removal.
• To correlate recurrence rates with surgical removal extent and histological features.

Main Methods:

• Retrospective review of 53 patients undergoing meningioma surgery over 10 years.
• Macroscopic grading of tumor removal: total (types I-III) vs. subtotal (type IV).
• Long-term patient follow-up (average 5.3 years) to assess recurrence.

Main Results:

• Recurrence rates: 9.5% after type I, 18.4% after type II removals.
• Subtotal removal (type IV) showed a 20% regrowth rate.
• Histology significant: syncytial tumors, mitosis, and focal necrosis correlated with recurrence.
• No correlation found with patient age or sex.

Conclusions:

• Histological factors, including syncytial subtype, mitosis, and necrosis, are key predictors of meningioma recurrence.
• Extent of surgical removal impacts recurrence rates, with total removal associated with lower risk.
• Further investigation into histological markers can refine prognostic assessments for meningioma patients.