clinical features

Last reviewed 01/2018

MEN IIB differs from the more common MEN IIA by the earlier onset of symptoms.

The features of MEN IIB consist of:

• medullary carcinoma of the thyroid
• phaeochromocytoma
• mucosal neuromata of the lips, eyelids and tongue
• ganglioneuromatosis of the bowel
• marfanoid habitus
• proximal myopathy