Rapid malignant progression of an intraparenchymal choroid plexus papillomas
- Autori: Ruggeri L.; Alberio N.; Alessandrello R.; Cinquemani G.; Gambadoro C.; Lipani R.; Maugeri R.; Nobile F.; Iacopino D.; Urrico G.; Battaglia R.
- Anno di pubblicazione: 2018
- Tipologia: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/484399
Abstract
Background: Choroid plexus tumors (CPTs) are rare neoplasms accounting for only 0.3-0.6% of all brain tumors in adults and 2-5% in children. The World Health Organization (WHO) classification describes three histological grades: grade I is choroid plexus papilloma (CPP), grade II is atypical papilloma, and grade III is the malignant form of carcinoma. In adults, CPTs rarely have a supratentorial localization. Case Description: Here we report a very rare case of an intraparenchymal parietal CPP with a rapid histological transition from grade I to grade III WHO in a 67-year-old man, in <7 months. Conclusion: Because of the rarity of these oncotypes, descriptions of each new case are useful, mostly to consider this diagnostic entity in extraventricular brain tumors of adults, despite an unusual location.