noun
subdural hematoma; subdural hemorrhage
Medical term for bleeding between the dura mater and the brain surface, often caused by head trauma.
転倒後、硬膜下血腫と診断された。
After the fall, he was diagnosed with a subdural hematoma.
Compound of 硬膜 (こうまく, dura mater), 下 (か, under), and 血腫 (けっしゅ, hematoma).