title: A case of perirenal hemangioma mimicking renal cell carcinoma.
abstract: OBJECTIVE
  We present a rare case of perirenal hemangioma that was detected incidentally.
  
  
  RESULTS
  Radiographic examinations revealed a 3.5 cm mass at the left renal hilum adjacent to the left renal parenchyma, which was difficult to differentially diagnose from renal cell carcinoma. Tumor resection was performed successfully.
  
  
  CONCLUSIONS
  There was no recurrence observed 14 months after surgery.
authors.affiliation: Department of Urology, East Tokyo Metropolitan Hospital, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Okuno
authors.forename: M
authors.initials: M
authors.lastname: Ando
authors.forename: C
authors.initials: C
authors.lastname: Arisawa
authors.forename: T
authors.initials: T
authors.lastname: Okano
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006391:Hemangioma / Q000000981:diagnostic imaging* / Q000473:pathology; D006417:Hematuria / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed