<prompt> Most common type of carcinoma of thyroidPapillaryFollicularMedullaryAnaplastic  <response>: Papillary carcinomaPapillary carcinoma is the most common thyroid malignancy. Nonetheless, when papillary cancer is diagnosed most patients will be offered treatment. The disease is known for its propensity for lymph node metastases. These are more common in younger patients, in whom they do not affect the otherwise excellent survival.Reference: Bailey Loves short practice of surgery , 27th ed page no 818 