[Complete response to M-FAP chemotherapy for multiple lung metastases after segmental resection of urachal carcinoma : a case report].

A 39-year-old man visited our clinic with gross hematuria. Cystoscopy revealed a papillary tumor at the urinary bladder dome. Abdominal magnetic resonance imaging (MRI) and computed tomography(CT) demonstrated a tumor extending from the umbilicus to the bladder dome. Transurethral resection of bladder tumor (TUR-Bt) was performed and histopathological findings revealed adenocarcinoma. Chest CT and examination of the upper gastrointestinal did not reveal any abnormal findings. The tumor was diagnosed as stage IIIA urachal carcinoma, and en bloc segmental resection was performed. About 10 months later, chest CT demonstrated multiple lung metastases. After two courses of combination chemotherapy with methotrexate (MTX), 5-fluorouracil (5-FU), epirubicin (epiADM), and cisplatin (CDDP), the multiple lung metastases completely disappeared. The patient has survived 23 months to date with no evidence of disease and is receiving adjuvant chemotherapy with tegafur uracil.