CMV-infected subependymoma in the fourth ventricle of an HIV-1 infected patient.

A case of an AIDS patient with a CMV-infected subependymoma of the fourth ventricle is presented. The tumor was incidentally found at autopsy and was not suspected during the clinical course. This is the first report of a subependymoma in HIV-1 infection. Moreover, infection of a tumor with CMV is an extremely rare condition, which has until now been described only once in an anaplastic astrocytoma.