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Meningioma associated with acute subdural hematoma--case report
I Sunada1, H Nakabayashi, Y Matsusaka
1Department of Neurosurgery, Saiseikai Ibaraki Hospital, Osaka, Japan.
Radiation Medicine
|February 3, 1999
Summary
A brain tumor caused repeated bleeding into itself and the surrounding area, leading to stroke symptoms. High cell proliferation in the fibrous meningioma may explain the hemorrhage.
Area of Science:
- Neurology
- Neurosurgery
- Oncology
Background:
- Meningiomas are typically benign tumors, but some subtypes can exhibit aggressive behavior.
- Intracranial hemorrhage is a rare but serious complication of meningiomas.
Observation:
- A 48-year-old woman presented with sudden hemiplegia and headache, indicative of a stroke.
- Imaging revealed a parasagittal tumor with intratumoral and subdural hemorrhages, suggesting repeated bleeding events.
- Histological analysis identified a fibrous meningioma with a high Ki-67 labeling index (6.7%).
Findings:
- The tumor infiltrated the superior sagittal sinus, contributing to the complex presentation.
- Tumor cells were found within the subdural hematoma, strongly suggesting tumoral hemorrhage as the cause.
- The high Ki-67 index indicates significant tumor cell proliferation.
Implications:
- This case highlights that even fibrous meningiomas can cause significant intracranial hemorrhage.
- Elevated cell proliferation may be a marker for increased risk of hemorrhage in meningiomas.
- Prompt surgical intervention is crucial for managing symptomatic meningiomas with hemorrhage.