[Angiomyolipoma in the renal pelvis].
A 54-year-old male presented with massive hematuria with bladder tamponade. Computed tomography and magnetic resonance imaging showed a 7.5 x 6.5 x 4.5 cm. mass centered in the left renal pelvis, which is composed of macroscopic fat and soft-tissue component. Differential diagnosis included liposarcoma, lipoma and angiomyolipoma. Urothelial carcinoma was also undeniable because urine cytology was equivocal. Subsequently, a left nephroureterectomy was performed. Pathological examinations revealed a renal angiomyolipoma protruding into the renal pelvis. We present a rare case of angiomyolipoma in the renal pelvis and review the literature concerning these unusual findings of this common neoplasm.
Department of Urology, Toshiba Hospital.
Tomoyuki
T
Kaneko
Tetsuo
T
Ogushi
Yasuyuki
Y
Asakage
Tadaichi
T
Kitamura
D018207:Angiomyolipoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D007682:Kidney Pelvis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy; D014057:Tomography, X-Ray Computed; D014513:Ureter / Q000601:surgery