Macrocystic ductal adenocarcinoma, a good outcome for a rare cancer in an elderly comorbid patient.

Ductal adenocarcinoma is an aggressive prostate cancer often presenting late due to low serum PSA. A variant presentation of ductal adenocarcinoma occurs with formation of large cystic structures in the prostate, often associated with lower urinary tract symptoms. We present a case illustrating investigation and successful management of a macrocytic ductal carcinoma in a 90 year old patient.