診断の困難であった亜急性後頭蓋窩硬膜外血腫

Subacute Epidural Hematoma of the Posterior Fossa-A Case Study

Ⅰ．症例

　患者：○川○典　19歳　男

　主訴：頭痛，嘔気，嘔吐

The authors presented a case of a subacute epidural hematoma of the posterior fossa, for which we never thought of a head injury at the admission. We discussed the diagnosis (the clinical pictures and X-ray findings), stressing that CT plays an important role especially in diagnosing posterior fossa diseases.

Our case could probably not be diagnosed correctly without CT, because the conventional X-ray examinations did not reveal clearly the space-occupying lesion in the posterior fossa, before CT was done.