Abstract
Over a 30-month period, subtemporal subdural hematoma was diagnosed arteriographically and verified surgically in 14 patients. It is not a rare lesion and usually occurs in the anterior portion of the middle fossa. When carotid angiography is performed, the submentovertical projection is added to standard views of trauma patients with a suspected middle fossa mass. Routine projections will not demonstrate most subtemporal subdural hematomas, because of the anatomical features of the fossa. When intratemporal injury and subtemporal subdural hematoma occur together, arteriography facilitates accurate diagnosis of both lesions as well as an understanding of their relative proportions.
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