In papillary Ca thyroid all are true except
High-Yield Explanation
Most common thyroid cancer (70-80%) Histologically the tumour shows papillary projections (psammoma bodies) and characteristic pale, empty nuclei (Orphan Annie-eyed nuclei). Papillary carcinomas are very seldom encapsulated. Spread to the lymph nodes is common, but blood-borne metastases are unusual unless the tumour is extrathyroidal Source : Bailey and love 26th edition Pg : 765