A huge collecting duct carcinoma of the kidney in an elderly woman: Diagnosis and managment challenge (uncommon condition).

Collecting duct carcinoma, also known as Bellini duct carcinoma (BDC) is a rare type of renal tumor, arising from the distal collecting ducts. The prognosis of this disease is extremely poor due to its rapid progression with widespread metastasis. The present study reported a case of CDC involving the left renal region of a 68-year-old female patient.