Alpha-fetoprotein-producing adenocarcinoma of the ureter.

We report a case of primary ureteral tumor producing alpha-fetoprotein (AFP). Computerized tomography, ultrasonography and endoscopy of the bile duct revealed no obvious tumor in the liver, gallbladder, bile duct, pancreas or ovary. Total nephroureterectomy was performed, and histopathological examination revealed adenocarcinoma of the ureter lined with transitional cell carcinoma in its base. The tumor was stained with immunohistological AFP stain, and the high serum AFP level normalized after resection of the tumor.