<prompt> Primary hyperparathyroidism, phaeochromocytoma may be associated with which type of thyroid cancer?Medullary carcinoma of the thyroidPapillary carcinoma of the thyroidAnaplastic carcinoma of the thyroidFollicular carcinoma of the thyroid  <response>: Ref : Bailey and love surgery text book 27th Ed. It is characterized clinically by medullary thyroid carcinoma MTC, pheochromocytoma, and hyperparathyroidism. Approximately 70-95 of individuals with MEN 2A develop MTC, 50 develop pheochromocytoma, and 15-30 develop hyperparathyroidism. 