Bellini duct carcinoma: a case report.
We report a rare case of Bellini duct carcinoma, which is an unusual variant of renal cell carcinoma. The patient, a 56-year-old man, was admitted to our hospital for detailed examination of a renal mass on the left side. He had no clinical symptoms such as gross hematuria or flank pain. Abdominal ultrasonography, computed tomography and magnetic resonance imaging revealed a tumor 4 cm in diameter at the lower pole of the left kidney. Selective renal angiography showed an avascular mass lesion. We performed left transperitoneal radical nephrectomy with a preoperative diagnosis of left renal tumor, T2N0M0. The histopathological diagnosis was Bellini duct carcinoma of papillary tubular type. Lectin histochemistry demonstrated positive staining with soyabean agglutinin and peanut agglutinin. These findings supported our conclusion that the tumor might have originated from the Bellini duct epithelium. The patient currently remains disease-free. The pathogenesis and management of this rare condition are discussed.
Natsume
O
O
Department of Urology, Nara National Hospital, Japan.
Ozono
S
S
Futami
T
T
Ohta
M
M
D002292:Carcinoma, Renal Cell / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D006651:Histocytochemistry; D006801:Humans; D007680:Kidney Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D007685:Kidney Tubules, Collecting / Q000473:pathology; D037102:Lectins / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy
D037102:Lectins