This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Go to /pro/cpd-dashboard page

This page is worth 0.05 CPD credits. CPD dashboard

Go to /account/subscription-details page

This page is worth 0.05 CPD credits. Upgrade to Pro

Sipple's syndrome

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

This is the most common variant of MEN-II and is characterised by:

  • multiple phaeochromocytomas in the adrenal medulla
  • medullary carcinoma of the thyroid
  • less commonly, parathyroid hyperplasia or adenoma

Medullary thyroid tumours are present in over 90% of cases. They are usually an early sign in MEN-IIA and commonly, are very slow growing. Mortality and morbidity may be reduced significantly by screening for serum calcitonin in combination with pentagastrin stimulation.

Phaeochromocytomas are present in about 50% of cases and are a major cause of death. They should be excluded or treated in any patient with MEN-IIA.


Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.