Choroid plexus papilloma of the third ventricle: angiography, preoperativeembolization, and histology

We report a unique case of choroid plexus papilloma of the third ventricle in an 8-month-old girl in which preoperative embolization played a salient role in management. Initial surgery was aborted due to excessive bleeding. Cerebral angiography demonstrated enlarged posterior choroidal arteries fee ding the tumor, and intense, persistent tumor staining. These vessels were effectively embolized to stasis with polyvinyl alcohol particles. The patie nt underwent a second craniotomy and complete resection of the tumor with m inimal blood loss. Postsurgical histology showed postembolization iatrogeni c intratumoral necrosis.