Third Ventricle Cavernous Malformation and Obstructive Hydrocephalus Thought to Be a Colloid Cyst

摘要

BACKGROUND: Third ventricle cavernous malformations (CMs) associated with ventriculomegaly and obstructive hydrocephalus are quite rare in patients. Preoperative surgical planning can be challenging due to the lesion's nonspecific appearance on CT and magnetic resonance imaging that can mimic other intraventricular pathologies, such as a colloid cyst. Management of these lesions can be varied in the setting of obstructive hydrocephalus.