title: Bone metastases from bladder perivascular epithelioid cell tumor - an unusual localization of a rare tumor: a case report.
abstract: BACKGROUND
  Perivascular epithelioid cell tumors are mesenchymal tumors composed of histologically and immunohistochemically distinctive perivascular epithelioid cells. This type of tumor is rare but bladder localization is even rarer.
  
  
  METHODS
  A case of bone metastatic bladder perivascular epithelioid cell tumor in a 65-year-old Caucasian man treated with surgery and chemotherapy is described and compared with other reports in the literature.
  
  
  CONCLUSIONS
  The rarity of perivascular epithelioid cell tumors hinders the development of a standard therapeutic approach, and thus requires case report descriptions. There is a need for cooperative studies to enlarge the case series and establish the best treatment strategy for this rare disease.
authors: Giovanni
authors: G
authors: Palleschi
authors: Department of Biotechnologies and Medico-Surgical Sciences, Urology Unit, ICOT, Sapienza University of Rome, Latina, Italy. antonioluigi.pastore@uniroma1.it.
authors: Antonio Luigi
authors: AL
authors: Pastore
authors: Salvatore
authors: S
authors: Evangelista
authors: Luigi
authors: L
authors: Silvestri
authors: Luigi
authors: L
authors: Rossi
authors: Claudio
authors: C
authors: Di Cristofano
authors: Natale
authors: N
authors: Porta
authors: Vincenzo
authors: V
authors: Petrozza
authors: Silverio
authors: S
authors: Tomao
authors: Antonio
authors: A
authors: Carbone
mesh_terms: D000368:Aged; D000964:Antimetabolites, Antineoplastic / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000188:drug therapy / Q000556:secondary*; D003841:Deoxycytidine / Q000031:analogs & derivatives / Q000627:therapeutic use; D006801:Humans; D007085:Ilium; D008297:Male; D054973:Perivascular Epithelioid Cell Neoplasms / Q000188:drug therapy / Q000556:secondary*; D014057:Tomography, X-Ray Computed; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D000093542:Gemcitabine
chemical_list: D000964:Antimetabolites, Antineoplastic; D003841:Deoxycytidine; D000093542:Gemcitabine