Which of the following is a variant of papillary thyroid carcinoma?: (A) Columnar cell, (B) Insular, (C) Huhle cell carcinoma, (D) Medullary
Answer is A. Variants of papillary carcinoma thyroid : Pure papillary Follicular variant Diffuse sclerosing variant Tall cell, Columnar cell variant Insular and huhle cell carcinoma are variant of follicular carcinoma of thyroid. Medullary cell carcinoma is carcinoma arising from C cell. Ref: Harrison 17/e, Page 2242.