Extrathyroidal extension into strap muscles is T3b, Lymph node status is N0.Patients with below 55 years any T and any N with Mo (no metastasis) is taken as Stage IIf patient was above or 55 years age, would have been stage IIT1<2cmT2 2-4 cmT3a > 4cmT3bExtrathyroidal extension into strap musclesT4Gross extrathyroidal extension*This was recent update in AJCC 8th classification, previously cut off age was 45 yearsRef: AJCC 8th edition