What is diagnosis of fibrous dysplasia?

What is diagnosis of fibrous dysplasia?

The primary tool for diagnosis of fibrous dysplasia is an X-ray. While bone appears solid in an X-ray, a fibrous dysplasia lesion has a relative distinct appearance often described as “ground glass.” The condition may be diagnosed, therefore, even in a person with no symptoms who is getting an X-ray for other reasons.

What is fibrous dysplasia?

Fibrous dysplasia is a chronic problem in which scar-like tissue grows in place of normal bone. It often results in one or more, of the following: Bone deformity. Brittle bones. Pain.

What is ground glass appearance in bone?

Usually, the matrix of the lucency is smooth and relatively homogeneous; classically, this finding is described as a ground-glass appearance. Irregular areas of sclerosis may be present with or without calcification. The lucent lesion has a thick sclerotic border and is called the rind sign.

What is ground glass appearance in fibrous dysplasia?

1. The lesions of monostotic fibrous dysplasia are usually radiolucent, often having a loculated or trabeculated appearance. Scattered throughout the fibrous lesion, there is an appearance of radiopacity. This represents the classic ground glass or smoky appearance of bone.

How does fibrous dysplasia spread?

The changes in the gene cause bone-forming cells to fail to mature. Instead, they produce abnormal fibrous tissue in certain bones. Because the gene change happens while the baby is developing, only specific bones will have the disease. This means fibrous dysplasia does not spread from one bone to another.

How does fibrous dysplasia affect the body?

Fibrous dysplasia (FD) is a rare bone disorder. Bone affected by this disorder is replaced by abnormal scar-like (fibrous) connective tissue. This abnormal fibrous tissue weakens the bone, making it abnormally fragile and prone to fracture. Pain may occur in the affected areas.

What are types of fibrous dysplasia?

The main types of fibrous dysplasia include:

  • monostotic fibrous dysplasia – only one bone is affected.
  • polyostotic fibrous dysplasia – two or more bones are affected.
  • McCune-Albright syndrome – fibrous dysplasia can be associated with hormone disturbances and skin pigment changes.

What is fibrous dysplasia of rib?

Fibrous dysplasia is a noninherited bone disease in which abnormal differentiation of osteoblasts leads to replacement of normal marrow and cancellous bone by immature bone with fibrous stroma. Monostotic fibrous dysplasia accounts for 28% in the ribs. It is often asymptomatic and incidentally detected on radiographs.

What is ground-glass appearance in dentistry?

Herein, the term ground-glass appearance refers to lesions with mostly relatively homogeneous, intermediate attenuation between that of normal cortical bone and soft tissue, an appearance that is analogous to the obturating surfaces of glass stop- pers used in laboratory glassware.

What is the significance of ground glass opacity?

Ground-glass opacity (GGO) is a common finding on high resolution CT, characterised by areas of hazy increased attenuation of the lung with preservation of bronchial and vascular margins; it is not to be confused with consolidation, in which bronchovascular structures are obscured.

What is focal fibrous dysplasia?

Fibrous dysplasia is an uncommon bone disorder in which scar-like (fibrous) tissue develops in place of normal bone. This irregular tissue can weaken the affected bone and cause it to deform or fracture.

What is craniofacial 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.