[Cutaneous metastases from follicular thyroid cancer].

BACKGROUND: Cutaneous metastases from differentiated thyroid carcinoma are rare: only 41 cases have been reported in the literature. CASE REPORT: A 57-year-old woman underwent total thyroidectomy for a poor differentiated follicular thyroid carcinoma, with involvement of sternum and pulmonary metastases. Despite iodine-131 ablative therapy (> 1 Ci) she developed a skin metastasis of the scalp 9 years after the initial surgery. She died of widely metastatic thyroid carcinoma. DISCUSSION: Follicular carcinoma has a greater preponderance than papillary carcinoma for cutaneous metastases. The majority of skin metastases are localized to the head and neck. The development of a cutaneous metastasis is commonly associated with metastasis to other distant tissues and is followed by a deteriorating course and eventual death resulting from malignancy.