What are the symptoms of fibrous dysplasia?
- A waddling walk.
- Bone deformity.
- Bone fractures.
- Bone pain (which happens when the fibrous tissue expands in the bone)
- Scoliosis (a sideways curve of the spine)
What is fibrous dysplasia of the skull?
Craniofacial fibrous dysplasia is a bone disease of the face and skull that replaces normal bone with fibrous-type tissue. This tissue is not as hard as normal bone, and because it is soft and stringy, it makes the bone more fragile and prone to break.
What is Mazabraud syndrome?
Mazabraud’s syndrome is defined as the association between fibrous dysplasia and intramuscular myxomas. The syndrome was first described in 1967 and, up until now, less than 100 cases have been reported worldwide. Here we report the association between this rare syndrome and thyroid cancer.
What gene causes fibrous dysplasia?
Fibrous dysplasia results from a genetic mutation (change) on chromosome 20. This mutation happens on one gene that directs bone formation and growth, but what causes this mutation to occur remains unknown.
How rare is fibrous dysplasia of the skull?
Fibrous dysplasia (FD) is an uncommon disorder of the skeleton that is rarely cancerous (less than 1 percent).
Is Osteofibrous dysplasia genetic?
Osteofibrous dysplasia is a rare, genetic primary bone dysplasia characterized by the presence of a benign, fibro-osseous, osteolytic tumor typically located in the tibia (occasionally the fibula, or both) and usually involving the anterior diaphyseal cortex with adjacent cortical expansion.
How common is Osteofibrous dysplasia?
Fibrous dysplasia is rare, accounting for just about 7% of all benign bone tumors. It can affect any bone in the body, but most often occurs in the: Femur (thighbone) Tibia (shinbone)
Does fibrous dysplasia affect teeth?
Teeth may become displaced as the lesion grows, while the arch form typically maintains its characteristic shape (Figure 3B). Radiographically, the characteristic “ground glass” appearance, of mixed radiolucency/opacity, may be seen – this is a result of woven or abnormal bone superimposed on a fibrous tissue matrix.
What is craniosacral fibrous dysplasia?
Craniofacial fibrous dysplasia is a bone disease of the face and skull that replaces normal bone with fibrous-type tissue. This tissue is not as hard as normal bone, and because it is soft and stringy, it makes the bone more fragile and prone to break.
What are the complications of fibrous dysplasia?
Complications. Severe fibrous dysplasia can cause: Bone deformity or fracture. The weakened area of an affected bone can cause the bone to bend. These weakened bones also are more likely to fracture. Vision and hearing loss. The nerves to your eyes and ears may be surrounded by affected bone.
How does fibrous dysplasia affect the facial nerve?
It may also cause facial nerve (VII) paralysis or vertigo. Although any of our twelve cranial nerves and their cranial foramina can be involved with fibrous dysplasia, resulting in cranial nerve deficits, visual and hearing loss represent the more common and debilitating clinical presentations.
How are trabeculae recognized in fibrous dysplasia?
In fibrous dysplasia, where bone development ceases in the woven bone stage, the trabeculae can be recognized by random irregular, birefringence, surrounded by abundant fibrous tissue. Monostotic disease is the most common type, occurring in 70 percent of cases and tends to occur most frequently on the long bones: femur, ribs and skull.
