Preferred Label : Mccune-albright syndrome;
Symbol : MAS;
CISMeF acronym : MAS; PFD; POFD;
Type : Phenotype, molecular basis known;
Alternative titles and symbols : Albright syndrome;
Included titles and symbols : Polyostotic fibrous dysplasia; PFD; POFD;
Description : Activating or gain-of-function GNAS1 mutations in patients with the McCune-Albright
syndrome are present in the mosaic state, resulting from a postzygotic somatic mutation
appearing early in the course of development which yields a monoclonal population
of mutated cells within variously affected tissues. The nonmosaic state for most activating
mutations is presumably lethal to the embryo. The disorder is characterized clinically
by the classic triad of polyostotic fibrous dysplasia (POFD), cafe-au-lait skin pigmentation,
and peripheral precocious puberty. However, the disorder is clinically heterogeneous
and can include various other endocrinologic anomalies such as thyrotoxicosis, pituitary
gigantism, and Cushing syndrome (219080) (Lumbroso et al., 2004).;
Inheritance : Somatic mosaicism;
Molecular basis : Caused by somatic mutation in the guanine nucleotide-binding protein, alpha-stimulating
activity polypeptide 1 gene (GNAS1, 139320.0008);
Neoplasia : Pituitary adenoma;
Prefixed ID : #174800;
Origin ID : 174800;
UMLS CUI : C0242292;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
DO Cross reference
False automatic mappings
Genes related to phenotype
HPO term(s)
ORDO concept(s)
Semantic type(s)
UMLS correspondences (same concept)