title: Leiomyosarcoma of the renal vein.
abstract: Leiomyosarcoma of the renal vein is a rare tumor of complex diagnosis. We presented a case of renal vein leiomyosarcoma detected in a routine study. The primary treatment was complete surgical removal of the mass. In cases where surgical removal is not possible the prognosis is poor, with high rates of local recurrence and distant spread.
authors.affiliation: Albert Einstein Jewish Hospital, São Paulo, SP, Brazil. gclemos@ajato.com.br
authors.forename: Gustavo C
authors.initials: GC
authors.lastname: Lemos
authors.forename: Omar R
authors.initials: OR
authors.lastname: El Hayek
authors.forename: Marcelo
authors.initials: M
authors.lastname: Apezzato