Collecting duct carcinoma of the kidney with retroperitoneal lymph mass.
OBJECTIVE
Collecting duct carcinoma (Bellini) of the kidney is a rare histological type of renal cell carcinoma (1%) with distinctive clinical and histopathological features. It is associated with aggressive behavior and a poor prognosis.


RESULTS
We describe the clinical and immunohistochemical features of a new case of collecting duct carcinoma and discuss the radiological findings and therapeutic aspects.


CONCLUSIONS
Collecting duct carcinoma is associated with aggressive behavior and a poor prognosis. The imaging features (US and CT) suggest the diagnosis. The immunohistochemical characteristics of the distal tubular epithelium aid the differential diagnosis between renal tumours. Percutaneous biopsy with a Tru-cut needle can be useful for pathological diagnosis. Management is currently restricted to radical nephrectomy, and chemotherapy or immunotherapy may offer only limited benefits.
Ortiz Gorraiz
Manuel
M
Department of Urology, Virgen de las Nieves Hospital, Granada, Spain. mortig@fundacionhvn.org
Rosales Leal
Jose Luis
JL
Tallada Buñuel
Miguel
M
Zilbermann Morales
Sonia
S
D002292:Carcinoma, Renal Cell / Q000175:diagnosis / Q000556:secondary / Q000628:therapy; D017809:Fatal Outcome; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000628:therapy; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D012187:Retroperitoneal Space