Caso citologico presentato da Guido Collina, MD - U. O. Anat. Ist. Pat. e Citodiagn., Osp. Maggiore, AUSL Bologna • • • • 69 yrs female small goitre, autoimmune thyroiditis high level of serum calcitonin small hypoechoic nodule with irregular borders in the right lobe • small hypoechoic nodule with irregular borders in the left lobe • cytological sampling negative for anti-calcitonin antibody