<prompt> Thyroid nodule of 4 cm size, mobile but causing compressive symptoms. All are true except:FNAC is investigation of choiceFNAC cannot distinguish follicular adenoma from carcinomaManaged by total thyroidectomyCold nodule are diagnostic of malignancy  <response>: Thyroid nodule investigation of choice is FNAC, but does not distinguish between Adenoma and Carcinoma. Managment is Total Thryoidectomy. Risk of malignancy for cold nodule is 17-20 