Thyrolipoma: diagnostic pitfalls in the cytologic diagnosis and review of the literature.

Thyrolipoma, or adenolipoma of the thyroid gland, is an uncommon neoplasm and thus not recognized by many cytopathologists. This is the first article to describe the fine-needle aspirate findings of a histologically confirmed thyrolipoma. The gross morphologic and computerized tomographic features of this entity are also discussed, and the literature is reviewed.