a developmental defect mainly involving bone. Symptoms usually include pain, disability and deformity of limbs, usually beginning in early childhood. The abnormal bone formation may reduce the success rates for dental implants.
An asymptomatic regional alteration of bone in which the normal architecture is replaced by fibrous tissue and nonfunctional trabeculae-like osseous structures; lesions may be monostotic or polyostotic, with or without associated endocrine disturbances.
Fibrous dysplasia is a disease that causes growths or lesions in one or more bones of the human body. These lesions are tumor-like growths that consist of replacement of the medullary bone with fibrous tissue, causing the expansion and weakening of the areas of bone involved. Especially when involving the skull or facial bones, the lesions can cause externally visible deformities.