特発性硬膜外血腫の2例

Spontaneous Epidural Hematoma:Report of two cases

I．はじめに

　外傷以外の原因による硬膜外血腫は非常に稀であり，文献例も散見されるにすぎない．発生原因としては頭蓋近傍の感染巣に起因するものが多いといわれている．われわれは胃癌の手術後3ヵ月目に出血傾向をきたした31歳男性と，副鼻腔炎の既往を持つ34歳女性の2例に特発性硬膜外血腫を経験したの報告する．

We report two cases of spontaneous epidural hem-atoma associated with the hemorrhagic diathesis and the paranasal sinusitis.

Case 1: A 31-year-old man with a history of subtotal gastrectomy because of gastric cancer. He complain-ed of headache at left temporal region, but CT scan showed no abnormal finding. After about 12 hours, he was found in comatose state. Emergency CT scan showed left epidural hematoma. He had the throm-bocytemia and hemorrhagic diathesis which were supposed to be the side effect of the chemotherapy or DIC.