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Article
June 1973

Idiopathic Inflammatory Myopathy: Failure to Detect Hepatitis B Antigen in Serum and Muscle

Author Affiliations

Bethesda, Md
From the Medical Neurology Branch, National Institute of Neurological Diseases and Stroke (Drs. Whitaker and Engel), and the Clinical Center Blood Bank, National Institutes of Health (Drs. Holland and Alter), Bethesda, MD. Dr. Whitaker is now at the Veterans Administration Hospital, Minneapolis.

Arch Neurol. 1973;28(6):410-411. doi:10.1001/archneur.1973.00490240070013
Abstract

A search was conducted for hepatitis B antigen (HBAg) in 21 serum and 29 muscle specimens from patients with well documented idiopathic inflammatory myopathy. Although intramuscular vascular granular deposits of immunoglobulin and β1C/1A globulin were present in many of these individuals, HBAg was not detected in the serum or muscle of any of them. Antibody to HBAg was detected in serum samples of 10%, similar to the frequency found in normal controls and other hospitalized patients.

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