The pattern of the pigment distribution is unique, often starting or ending abruptly at the midline on the abdomen in front or at the spine in back. Some adolescent children may want to use makeup to obscure areas of dark pigment on the face. So far, researchers have not found a cure for the bone and endocrine disease in McCune-Albright syndrome. It cannot yet be diagnosed before birth and there is no way to accurately predict how severe the disease may become in an affected child. There are no reported cases of any parent being affected, and the children of women with McCune-Albright syndrome are normal.
All races appear to be affected equally.
Thus, we are not yet certain of the genetic origin of the defect. It is believed, however, that it may be the result of a mutation occurring early in the development of the embryo. Recently, researchers have discovered abnormal mutations in DNA obtained from the affected ovaries, adrenals, and liver of several patients with McCune-Albright syndrome. The presence of this mutation could result in uncontrolled cell function or hormone secretion. This research is continuing, and it may soon enable us to plan better methods of treatment for patients with the McCune-Albright syndrome.