Multiple endocrine neoplasia II (MEN II) is an uncommon condition passed down through families (inherited) marked by overactivity of the thyroid, adrenal, and parathyroid glands.
Alternative Names
Sipple's syndrome
Causes, incidence, and risk factors
The cause of MEN II is a defect in a gene called RET. This defect causes many tumors to appear in the same person, but not necessarily at the same time. The type of adrenal tumor is a
The disorder may occur at any age, and affects men and women equally. The main risk factor is a family history of MEN II.
