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This fact sheet contains general information about Multiple Endocrine Neoplasia Type 1 (MEN type 1). Each person should be referred to a genetic service for further information and advice. 

Key Points

  • MEN type 1 is due to faults (mutations) in the MEN1 gene.
  • People with MEN type 1 have an increased chance of developing tumours in their endocrine glands. These tumours are usually benign (non-cancerous), but sometimes they are malignant (cancerous).
  • Family members (including children) can be referred to a genetic service where experts can provide information, advice and support about their chance of developing cancer and the option of genetic testing.

This cancer genetics fact sheet is a guide only and cannot cover every possible situation. The information provided is not intended to replace discussion with a health professional, and should not be interpreted as medical advice. Use of this document is subject to eviQ's disclaimer available at  

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15 Jul 2020