Ruptured intracranial mycotic aneurysm presenting as cerebral haemorrhage in an infant: case report and review of the literature.

A 2-month-old male infant presented with intracranial haemorrhage caused by ruptured intracranial mycotic aneurysm. Computed tomography and cerebral selective angiography revealed a large haematoma in the left sylvian fissure and a mycotic aneurysm of a peripheral branch of the middle cerebral artery. Despite the successful surgical removal, the child did not recover from the initial brain injury and died 2 months later. There have been fewer than 10 reported cases of infantile mycotic aneurysms and its occurrence in the absence of infectious endocarditis is exceptionally rare.