摘要:Craniopharyngioma accounts for 2.5-4 percent of all intracranial tumors. The tumor is more observed in the chiasmatic region in adults and the intraventricular subtype is rare. We report an intraventricular craniopharyngioma in a 22-year-old woman presented with chronic headache. Magnetic Resonance Imaging showed hyperintense large mass on T1-weighted images and hypointense mass on T2-weighted images in third ventricle with pressure effect on both lateral ventricles and foramen of Monro. The diagnosis of craniopharyngioma was confirmed through histopathological examination of the resected tumor after surgery. After a follow-up period of nine months, neither tumor recurrence nor regrowth occurred. The early diagnosis of this relatively frequent tumor would help to prevent related sequelae.