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Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

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

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