- Periosteal reaction
Name = PAGENAME
DiseasesDB = 31520
A periosteal reaction is the formation of new
bonein response to injuryor other stimuli of the periosteumsurrounding the bone. It is most often identified on X-rayfilms of the bones.
A periosteal reaction can result from a large number of causes, including injury and chronic irritation due to a medical condition such as
hypertrophic osteopathy, bone healingin response to fracture, chronic stress injuries, subperiosteal hematomas, osteomyelitis, and cancerof the bone. It may occur as part of thyroid acropachy, a severe sign of the autoimmune thyroid disorder Grave's disease.
The morphological appearance can be helpful in determining the cause of a periosteal reaction (for example, if other features of
periostitisare present), but is usually not enough to be definitive. Diagnosis can be helped by establishing if bone formation is localized to a specific point or generalized to a broad area. The appearance of the adjacent bone will give clues as to which of these is the most likely cause.
Hypertrophic pulmonary osteoarthropathy
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