Resection of metastatic thyroid carcinomas to the liver and the kidney: report of a case.

Differentiated thyroid cancer is considered to have a quite favorable prognosis. However, some patients die as a result of distant metastasis, which mainly consists of pulmonary, mediastinal, or osteal metastases. The biological features of the tumor, such as a slow growth gradient, indicate the possibility of achieving comparatively satisfactory results in the treatment of such distant metastases. A complete surgical excision of the distant metastases in differentiated thyroid carcinoma has been reported to offer the best chance for prolonged survival. A case of unusual metastasis sites on the caudate lobe of the liver and right kidney occurring in a 72-year-old woman is herein presented. The location of the surgically treated distant metastases of the papillary thyroid carcinoma make this case unique.