All::Endocrinology::Diseases::Multiple endocrine neoplasia

Intro

What is Multiple endocrine neoplasia?

a condition which encompasses several distinct syndromes featuring tumours of endocrine glands

What is the inheritance pattern of Multiple endocrine neoplasia?

autosomal dominant

What cancers are associated with MEN type I?

  • Parathyroid (95%): hyperparathyroidism due to parathyroid hyperplasia
  • Pituitary (70%)
  • Pancreas (50%): e.g. insulinoma, gastrinoma (leading to recurrent peptic ulceration)

What cancers are associated with MEN type IIa?

  • Medullary thyroid cancer (70%)
  • Parathyroid (60%)
  • Phaeochromocytoma

What cancers are associated with MEN type IIb?

  • Medullary thyroid cancer
  • Phaeochromocytoma
  • Neuromas