Small cell carcinoma of the prostate with hypercalcemia.

We present a case of small cell prostate carcinoma with hypercalcemia in a 75-year-old man. He was diagnosed as having stage T3bN1M0 adenocarcinoma of the prostate. His serum prostate-specific antigen level was reduced to below the normal range after a combination treatment of a luteinizing hormone-releasing hormone agonist and flutamide for prostate carcinoma. He subsequently experienced increasing fatigue, poor appetite, short time loss of consciousness and pain in his lower abdomen. His serum calcium level and carcinoembryonic antigen were increased. He died 5 months from the start of treatment. The autopsy revealed small cell carcinoma of the prostate and multiple metastasis of the lung, liver, pancreas, lymph nodes and spine.