Metastatic collecting duct (Bellini duct) carcinoma: A case report / 대한내과학회지

ABSTRACT

Renal cell carcinoma accounts for 2.6% of all cancer, and most renal cell carcinoma has a clear cell origin. Bellini duct carcinoma, which arises from collecting duct cells (Bellini cells), is a rare type of renal cell carcinoma, constituting less than 1% of all renal cell carcinoma. The prognosis of Bellini duct carcinoma is very poor, and more than 60% of the patients die within 2 years of diagnosis. There is no consensus regarding the optimal treatment. We report a case of Bellini duct carcinoma in a 53-year-old male with multiple lung and liver metastases. The patient was treated with eight cycles of M-VAC (methotrexate, vincristine, doxorubicin, and cisplatin) combination chemotherapy. The patient currently shows a radiological partial response without disease progression 10 months after the chemotherapy.