LEPTOMENINGEAL LIPOMATOUS HAMARTOMA OVERLYING A MIDLINE CLEFT OF THE VENTRAL PONS

Intracranial lipomatous hamartomas (lipomas) are of maldevelopmental n ature and have a predilection for the midsagittal plane. They are ofte n associated with malformations of the CNS and other organ systems. It is reported an asymptomatic lipomatous hamartoma of the ventral ponti ne leptomeninges and a midline cleft of the subjacent pens discovered incidentally at autopsy of an 80-year-old man. Review of the literatur e shows that this type of lesion at the ventral pens has not been repo rted previously.