McCune-Albright syndrome and type 1 diabetes mellitus: a novel presentation

Prerana Chatty, Ahmed Khattab, Ian Marshall

Research output: Contribution to journalArticlepeer-review


McCune-Albright syndrome (MAS) is caused by postzygotic somatic activating mutations of GNAS and is classically characterized by the clinical triad of peripheral precocious puberty, café-au-lait pigmentation, and polyostotic fibrous dysplasia. It can also present with other hyperfunctioning endocrinopathies, including growth hormone excess, hyperprolactinemia, hypercortisolemia, hyperthyroidism, and renal phosphate wasting due to excess fibroblast growth factor 23. We review the clinical, biochemical, radiological, and genetic findings in a 7-year-old girl diagnosed with MAS at age 4 and then with autoimmune type 1 diabetes mellitus at age 7. While MAS is associated with hyperglycemia secondary to growth hormone excess and hypercortisolemia, an association with diabetes mellitus has not been demonstrated. We review the unique presentation of a patient with these two rare conditions.

Original languageEnglish (US)
Pages (from-to)5-8
Number of pages4
JournalAnnals of the New York Academy of Sciences
Issue number1
StatePublished - Mar 1 2020

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science


  • GNAS
  • McCune-Albright syndrome
  • type 1 diabetes mellitus


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