MEDULLARY CARCINOMA OF THYROID WITH HASHIMOTOS THYROIDITIS - A RARE CASEREPORT

Medullary carcinoma of thyroid in association with Hashimotos thyroiditis is a very rare entity. It is reported with an increased predilection for women in their fifth decades. These tumors have an intermediate prognosis. Hereby, we report a case of medullary thyroid carcinoma with Hashimotos thyroiditis in a 50 year old woman who presented with neck swelling of four months duration. Fine needle aspiration cytology suggested the possibility of medullary carcinoma of thyroid. Serum calcitonin levels were markedly elevated. Total thyroidectomy was done. Histopathological examination and immunohistochemistry confirmed the diagnosis.