JOURNAL ARTICLE

[An operated case of a meningioma causing acute subdural hematoma]

Masashi Chonan, Kuniyasu Niizuma, Shinya Koyama, Hiroyuki Kon, Seiya Sannohe, Hidekachi Kurotaki, Hiroshi Midorikawa, Tatsuya Sasaki, Michiharu Nishijima
No Shinkei Geka. Neurological Surgery 2013, 41 (3): 235-9
23459521
We report a rare case of a meningioma causing acute hematoma. A 67-year-old woman presented with sudden headache. No evidence of trauma was seen. CT demonstrated a subdural hematoma in the convexity of the fronto-temporal lobe. Magnetic resonance imaging showed marked signal heterogeneity in the convexity of the frontal lobe. One week later, the patient underwent hematoma evacuation and tumor resection including the attached dura mater. The histological diagnosis was meningothelial meningioma. The clot was connected directly to the tumor and the origin of the subdural hematoma was identified as the meningioma. Postoperative course was uneventful, and the headache improved. Meningiomas have a relatively benign course but rarely present with hemorrhage. Surgical exploration is the effective and recommended treatment.

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