<prompt> FNAC is not useful in which thyroid cancer -Follicular CarcinomaPappilary carcinomaMedullary CarcinomaThyroid Lymphoma  <response>: Ans. is a i.e., Follicular Carcinoma FNAC in Follicular carcinoma of thyroido It cannot distinguish between a Follicular Adenoma and a Follicular Carcinoma as this distinction is dependent not on cytology but on histological criteria such as capsular and vascular invasion. It thus cannot be used to diagnose follicular carcinomas 