title: Solitary Metastasis of Renal Cell Carcinoma to the Third Ventricle Mimicking a Colloid Cyst: Case Report.
abstract: Colloid cysts are the most common third ventricle lesions and metastasis to this area is rare. We presented a case of solitary metastasis from a renal cell carcinoma to the third ventricle choroid plexus mimicking a colloid cyst. A 53-year-old man, who had a history of renal cell carcinoma 12 years ago, was operated for single third ventricle lesion and hydrocephalus via a transcallosal approach. Total removal could not be performed due to intraoperative massive bleeding. Histological examination revealed a metastatic renal cell carcinoma. The patient died on the postoperative 13th day because of bleeding from the residual tumor. Stereotactic radiosurgery and ventriculoperitoneal shunting might be favorable in such cases in order to avoid serious complications.
authors.affiliation: Ankara Education and Research Hospital, Department of Neurosurgery, Ankara, Turkey.
authors.forename: Mete
authors.initials: M
authors.lastname: Karatay
authors.forename: Ender
authors.initials: E
authors.lastname: Koktekir
authors.forename: Yavuz
authors.initials: Y
authors.lastname: Erdem
authors.forename: Haydar
authors.initials: H
authors.lastname: Celik
authors.forename: Mehmet Akif
authors.initials: MA
authors.lastname: Bayar
mesh_terms: D002292:Carcinoma, Renal Cell / Q000556:secondary*; D002551:Cerebral Ventricle Neoplasms / Q000556:secondary*; D056364:Colloid Cysts / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D020542:Third Ventricle / Q000473:pathology*