Abstract
The patient was a 70-year-old woman who underwent right nephrectomy in January 1995. She was diagnosed with renal cell carcinoma on the basis of postoperative examinations. Computed tomography (CT) of the abdomen revealed a mass of size 4 cm in S8 of the liver. Partial hepatic resection of S8 was performed, and a diagnosis of carsinoid tumor of the liver was made on the basis of biopsy findings. The tumor size was 4×3 cm, and it consisted of a solid part enclosed in capsule. We suspected that the renal carcinoid had metastasized to the liver and reexamined the primary renal carcinoid. Thus, we made a diagnosis of metastasis of the primary renal carcinoid to the liver. To our knowledge, this is the first report on the resection of a liver tumor that developed from asynchronous metastasis of a renal carcinoid tumor renal carcinoid more than 12 years after nephrectomy. Thus, carcinoid tumors may recur or metastasize even after follow-up.
