McCune-Albright syndrome
| McCune-Albright syndrome | |
| ICD-10 | Q78.1 |
|---|---|
| ICD-9 | 756.54 |
| OMIM | 174800 |
| DiseasesDB | 7880 |
| MedlinePlus | 001217 |
| eMedicine | ped/1386 |
| MeSH | D005359 |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
McCune-Albright syndrome is a rare genetic disorder caused by an activating mutation of the GNAS gene resulting in various phenotypic presentations. MAS typically presents with the triad of polyostotic fibrous dysplasia, precocious puberty and café au lait spots in both genders. Other manifestations include hyperthyroidism, acromegaly and Cushing’s syndrome.[1]
Historical Perspective
McCune-Albright syndrome was first discovered by Donovan McCune and Fuller Albright, both physicians in 1937. [2]
Classification
McCune-Albright syndrome is caused by a missense mutation of the GNAS gene alpha subunit which becomes constitutively activated. This increases intracellular cAMP which activates downstream hormones resulting in multiple tissue types being affected and mosaicism presented in its patients. [1]