<prompt> A 25yr old male with thyroid swelling Biopsy shows intense lymphocytic infiltration along with huhle cell change TSH increasedHashimotos thyroiditisGraves diseasefollicular carcinomaMedullary carcinoma thyroid  <response>: Hashimoto;s Thyroiditis Biopsy features of lymphocytic infiltrate along with huhle cell change in thyroid swelling is diagnostic of hashimoto;s thyroiditis ref : robbins 10th ed 