Abstract: | From 1961 to 1973 forty patients with surgically confirmed intracranial abscesses had preoperative cerebral angiography. The findings were abnormal in all cases but one. In 20 patients (50%) the primary diagnosis was a space-occupying lesion. In 19 patients (47.5%) an abscess was suggested by the presence of a capsule, the only finding definitely diagnostic of an abscess. Subtraction technique provided essential information in detecting the capsule. Angiography proved indispensable in suggesting the nature of the lesion. |