This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': 'In papillary Ca thyroid all are true except \nSelect and explain. \nA. Most common thyroid cancer, B. Psammoma bodies seen, C. Not encapsulated, D. Blood borne metastasis is common', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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', 'role': 'assistant'}]