Department of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
Neurocrit Care. 2011 Feb;14(1):84-5. doi: 10.1007/s12028-010-9455-x.
Cavernous angiomas are responsible for intracranial hemorrhages, but bleeding is infrequently confined to the subarachnoid space.
We describe an elderly, yet healthy man who sought medical attention for subarachnoid hemorrhage.
Vascular imaging failed to reveal a cerebral aneurysm, however magnetic resonance imaging done late in the course showed a cavernous angioma, on the surface of the left upper cerebellar peduncle, that had bled.
The so-called "angiography-negative" subarachnoid hemorrhage could have its source in small cavernous angiomas lying on the surface of basal skull brain structures.
海绵状血管畸形可导致颅内出血，但出血很少局限于蛛网膜下腔。
我们描述了一位老年但健康的男性，因蛛网膜下腔出血而寻求医疗救治。
血管成像未能发现脑动脉瘤，但在病程后期进行的磁共振成像显示，左上部小脑脚表面有一个海绵状血管畸形出血。
所谓的“血管造影阴性”蛛网膜下腔出血可能源自位于颅底脑结构表面的小海绵状血管畸形。
