Table of Contents
- Overview
- Results
- Risks
- Prevention
- Images
Human leukocyte antigen B27
Normal Values
A normal (negative) result means HLA-B27 is absent.
However, HLA-B27 is found in 5 - 7% of Caucasians who do not have an autoimmune disorder.
What abnormal results mean
A positive test means HLA-B27 is present. It suggests a greater-than-average risk for developing:
- Ankylosing spondylitis
- Reiter syndrome
- Sacroiliitis (inflammation of the sacroiliac joint)
In the presence of suggestive clinical findings, a positive HLA-B27 test may confirm the diagnosis.
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HLA Risks
Review Date: 05/21/2009
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of
General Medicine, Department of Medicine, University of Washington
School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical
Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
