The long-term outlook (prognosis) for people with McCune-Albright syndrome (MAS) varies depending on the symptoms and severity in each affected person. Medical therapies can improve or control endocrine symptoms in most people with MAS.
Fibrous dysplasia is progressive throughout childhood and adolescence, and typically plateaus in middle and late adulthood. In some people, small amounts of fibrous dysplasia may cause few or no symptoms. In others, extensive bone disease may cause significant problems including loss of mobility, progressive scoliosis, facial deformity, and loss of vision and/or hearing.
Apart from the small proportion of people with increased surgery-related mortality and those who develop cancer, MAS is not associated with a significantly increased risk of death. In general, people with MAS have a normal life span.
Last updated: 3/22/2018
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