title: Renal hemangioma.
abstract: BACKGROUND
  Renal hemangioma is a relatively rare benign tumor, seldom diagnosed as a cause of hematuria.
  
  
  METHODS
  A female 40-year old patient presented with continuous gross hematuria, anemia and episodic right lumbar pain, with onset about 3 months previously. The patient underwent multiple blood transfusions during her hospital stay and extensive imaging propedeutics was performed. Semi-rigid ureterorenoscopy evidenced a bleeding focus in the upper calix of the right kidney, with endoscopic treatment being unfeasible. The patient underwent right upper pole nephrectomy and presented a favorable outcome. Histopathological analysis of the surgical specimen showed that it was a renal hemangioma.
  
  
  CONCLUSIONS
  Imaging methods usually employed for diagnostic investigation of hematuria do not have good sensitivity for renal hemangioma. However, they are important to exclude the most frequent differential diagnoses. The ureterorenoscopy is the diagnostic method of choice and endoscopic treatment can be feasible when the lesion is accessible and electrocautery or laser are available. We emphasize the open surgical treatment as a therapeutic option upon failure of less invasive methods.
authors.affiliation: Section of Urology, Ipanema General Hospital, Rio de Janeiro, RJ, Brazil.
authors.forename: Theodorico F da
authors.initials: TF
authors.lastname: Costa Neto
authors.forename: Juan M
authors.initials: JM
authors.lastname: Renteria
authors.forename: G
authors.initials: G
authors.lastname: Di Biase Filho
mesh_terms: D000328:Adult; D005260:Female; D006391:Hemangioma / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000601:surgery