Abstract

Kafil Akhtar*, S. Shamshad Ahmad, Sufian Zaheer and Shiasta M. Vasenwala

Mixed medullary–follicular carcinoma is an uncommon tumor of the thyroid. It is characterized by histological and immunohistochemical features of both follicular and parafollicular C cells. We report a case of medullary carcinoma of the thyroid in a 26 year old female, which on light microscopy, showed not only the well known arrangement of cells in sheets and nests, but also unequivocal follicular structures. Precise diagnosis of mixed medullary-follicular carcinoma is essential for accurate treatment and follows.