Archives of Head and Neck Surgery
Archives of Head and Neck Surgery

Thyroid collision tumor: a case report of three histological types in the same patient

José Gabriel Miranda da Paixão, Gabriel Villas Boas dos Santos Tabosa, Carlos Augusto Moreira Silva

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Concomitant occurrence of two different carcinomas in the same organ is rare. Also, it is quite uncommon in thyroid. In this case, three histological types were diagnosed in the same specimen. A 57-year-old patient with a thyroid nodule history, diagnosed 2 years ago. After a suspicious fine needle aspiration cytological result, total thyroidectomy was performed and the histopathological analysis presented three divergent thyroid tumors. There are few thyroid collision tumors cases described, no one with three different histologic types. The lack of clinical information about it, compelled a judicious management, that guided to a satisfatory outcome.


case reports; pathology; surgical; thyroid cancer; papillary; thyroid gland


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