<prompt> MEN I syndrome has all manifestations ExceptHyperparathyroidismZollinger-Ellison syndromeProlactinomaMedullary cancer thyroid  <response>: Medullary carcinomas of the thyroid occur in MEN 2A and 2BMEN-1 is characterized by abnormalities involving the parathyroid primary hyperparathyroidism, pancreas Endoctine tumours like gastrinoma, insulinoma and pituitary glands prolactinomaRobbins pathology 9e pg:1136 