ATYPICAL CEREBRAL ANEURYSM IN A YOUNG-CHILD

Autopsy findings are described of an atypical aneurysm of a large cere bral artery in a young child. The lesion is believed to have been an i nfective (mycotic) aneurysm. Antibiotics were administered at the time of the first Leakage which had been thought to be due to a sinus infe ction. The sac wall exhibited a subacute pleomorphic inflammatory cell response indicative of a resolving infective aneurysm, an appearance that is likely to be encountered more often in the future.