Affects a single bone. It accounts for about 70-80% of cases and is often asymptomatic until discovered incidentally on an X-ray.
A triad of polyostotic FD, café-au-lait skin spots (often with jagged "Coast of Maine" borders), and hyperfunctioning endocrine issues like precocious puberty. Symptoms and Complications
Because the mutation happens after fertilization, only some cells carry it. This results in a patchy, variable distribution of the disease across the body. Clinical Classification
Fibrous dysplasia (FD) is a rare, non-inherited bone disorder where normal bone marrow is replaced by abnormal, fibrous connective tissue. This makes the affected bones weak, prone to fractures, and susceptible to deformities. Pathophysiology and Genetics
Affects multiple bones. This form typically presents earlier in childhood and is more severe.
Fibrous dysplasia is categorized by how many bones it affects:
Symptoms vary widely based on the location and extent of the lesions: Fibrous Dysplasia - StatPearls - NCBI Bookshelf
Fibrous Dysplasia Of Bone Apr 2026
Affects a single bone. It accounts for about 70-80% of cases and is often asymptomatic until discovered incidentally on an X-ray.
A triad of polyostotic FD, café-au-lait skin spots (often with jagged "Coast of Maine" borders), and hyperfunctioning endocrine issues like precocious puberty. Symptoms and Complications
Because the mutation happens after fertilization, only some cells carry it. This results in a patchy, variable distribution of the disease across the body. Clinical Classification
Fibrous dysplasia (FD) is a rare, non-inherited bone disorder where normal bone marrow is replaced by abnormal, fibrous connective tissue. This makes the affected bones weak, prone to fractures, and susceptible to deformities. Pathophysiology and Genetics
Affects multiple bones. This form typically presents earlier in childhood and is more severe.
Fibrous dysplasia is categorized by how many bones it affects:
Symptoms vary widely based on the location and extent of the lesions: Fibrous Dysplasia - StatPearls - NCBI Bookshelf
