Hypothyroidism in mccune–albright syndrome and role of bone scan in management of fibrous dysplasia: An unusual case scenario with review of literature

Narvesh Kumar, Subhash Chand Kheruka, Rani Kunti R Singh, Mudalsha Ravina, Deepanksha Dutta, Sanjay Gambhir

Indian Journal of Nuclear Medicine 2017 32(1):25-29

The McCune–Albright syndrome (MAS) is a triad of café-au-lait skin pigmentation, precocious puberty (PP), and polyostotic fibrous dysplasia of bone (FD). In general, FD seems to be the most common component of MAS but very rarely precocious puberty can be found in association with café-au-lait skin pigmentation in the absence of FD (about 1% of the cases). Therefore, a more clinically relevant definition of MAS is fibrous dysplasia of bone (FD) and at least one of the typical hyperfunctioning endocrinopathy and/or café-au-lait spots, with almost any combination possible. Bone scan can be the modality of choice to look for bone disease burden of fibrous dysplasia in most patients of MAS and may change the management accordingly. Most of the cases of MAS reported worldwide are associated with hyperthyroidism, up to best of our knowledge on the basis of literature search in pubmed and Google; no case was reported with hypothyroidism. Herein, we report a 12-year-old girl diagnosed with MAS and associated hypothyroidism.We have also reviewed the MAS related literature.

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