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This article about a disease of musculoskeletal and connective tissue is a stub. You can help Wikipedia by expanding it.
Ankylosing spondylitis (AS) is a type of arthritis from the disease spectrum of axial spondyloarthritis. [5] It is characterized by long-term inflammation of the joints of the spine, typically where the spine joins the pelvis. [2] With AS, eye and bowel problems—as well as back pain—may occur. [2]
When involving inflammation, it can be called spondylitis. In contrast, a spondyloarthropathy is a condition involving the vertebral joints, but many conditions involve both spondylopathy and spondyloarthropathy. Examples include ankylosing spondylitis and spondylosis.
HLA-B27 is a polymorphic form of the HLA-B molecule found in up to 95% of people with ankylosing spondylitis of European ancestry, [16] [17] 70% with reactive arthritis, [18] 60% with psoriatic spondylitis, [12] 25% with peripheral psoriatic arthritis, [17] and 70% with spondylitis associated with inflammatory bowel disease.
Enthesopathy of the pelvis likely due to ankylosing spondylitis Enthesopathy can occur at the shoulder, elbow, wrist, carpus , hip, knee, ankle, tarsus , or heel bone , among other regions. Enthesopathies may take the form of spondyloarthropathies (joint diseases of the spine) such as ankylosing spondylitis , or psoriatic arthritis , plantar ...
More than 80% of patients with the ankylosing spondylitis variant test positive for the HLA-B27 biomarker, but not everyone with this biomarker will develop disease. [22] Some people with axial spondyloarthritis may test positive for elevated C-reactive protein , or CRP, depending on their disease activity. [ 22 ]
Spondylitis is an inflammation of the vertebrae. It is a form of spondylopathy . In many cases, spondylitis involves one or more vertebral joints , as well, which itself is called spondylarthritis .
This list features both the added and removed subtypes. Also, 22 ICD-9-CM codes were updated. [2] The ICD codes stated in the first column are those from the DSM-IV-TR. The ones that were updated are marked yellow – the older ICD codes from the DSM-IV are stated in the third column.