title: Rectal leiomyosarcoma in a young male with a history of Wilms' tumor.
authors.forename: J J
authors.initials: JJ
authors.lastname: Sebastián
authors.forename: M T
authors.initials: MT
authors.lastname: Soria
authors.forename: J
authors.initials: J
authors.lastname: Vicente
authors.forename: J
authors.initials: J
authors.lastname: Maurel
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications*; D007890:Leiomyosarcoma / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D012004:Rectal Neoplasms / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D009396:Wilms Tumor / Q000150:complications*