The age range of patients with MTC was 18–78 years, 81% were female, their largest tumor dimension on ultrasound range was 0.7–5.3 cm, preoperative basal serum calcitonin range was 8–10,702 ng/L, FNAB cytology was Bethesda category III (38%), IV (29%), or V (33%), while 53% were stage I and 47% were stage II and higher (Table 1). This evidence concerns the gene CALCA and medullary thyroid gland carcinoma.