Combined congenital vascular anomalies and neuroepithelial (colloid) cysts

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Abstract
We present two unique cases of intracranial congenital lesions of different origins. A 29-year-old woman had an angioma of the choroid plexus of the third ventricle and paraventricular region; a small neuroepithellal cyst was also included in the lesion. This case is the first known description of a choroidal angioma in the third ventricle. The other patient, a 39-year-old woman, had a ruptured saccular aneurysm at the junction of the anterior communicating and left anterior cerebral arteries, a cerebellar hemangioma, and a small neuroepithelial cyst with numerous papillary infoldings in the pineal region. The presence of choroid plexus in this cyst is further evidence of a developmental malformation. Review of the literature disclosed that vascular malformations and neuroepithelial cysts are occasionally associated with other congenital anomalies. The findings support the congenitally derived nature of these lesions.