Irinotecan as a new agent for urachal cancer.

The urachal carcinoma, in a 64-year-old male with multiple lung metastases, had shown the resistance to several anti-neoplastic agents including cisplatinum, methotrexate, 5-FU, doxorubicin, epirubicin, and mitomycin C. Because the tumor was adenocarcinoma producing mucin and serum carcinoembryonic antigen (CEA) increased, which resembled colorectal carcinoma, we administrated Irinotecan, which was very effective as the CEA decreased from 98.3 to 38.7 ng/ml and the pulmonary metastatic lesions were reduced by 60%. To our knowledge, this is the first case with urachal carcinoma in which Irinotecan was effective.