Angiolipoma of the thyroid gland.

This is a report of an angiolipoma of the thyroid gland, an extremely rare entity. A thorough search of the literature revealed only one previously reported example. The patient was a 77-year-old woman with a history of a nodular lesion of the thyroid in the context of a multinodular goiter. A fine needle aspiration highlighted the presence of abundant adipocytes associated with numerous dilated vessels. Histopathologic examination of the lobectomy specimen documented the presence of a tumor composed of two main elements, namely, mature adipocytes and proliferating vessels, some of the latter containing fibrin thrombi.