Systemic sclerosis presenting as recurrent pericardial effusion despite repeatedly negative multiplex antinuclear antibody results.

BMJ Case RepSep 7, 2026 (epub)
Case ReportRheumatology

Tsubasa Omae, Kazuya Nagao, Sohei Funakoshi et al.

✦ AI-curated · Sources linked

Case in brief

A woman in her 70s presented multiple times with recurrent pericardial effusions, despite negative multiplex antinuclear antibody (ANA) results. A detailed history revealed Raynaud's phenomenon and abdominal bloating, leading to further testing. Indirect immunofluorescence confirmed ANA positivity and anti-RNA polymerase III antibodies, diagnosing systemic sclerosis. Treatment with colchicine prevented further effusions.

Diagnostic / clinical pearl

Clinicians should not rely solely on multiplex ANA screens; persistent clinical suspicion warrants further testing with HEp-2 indirect immunofluorescence and disease-specific antibodies.

Why it matters

This case highlights the importance of comprehensive evaluation in patients with unexplained pericardial effusions, as initial tests may not capture underlying autoimmune conditions.

Source

Published in BMJ Case Rep. This summary was written by xxcode from the publication's abstract and metadata. It is not peer reviewed and is not a substitute for the original article. For clinical decisions, review the original publication.

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AI-generated summaries may contain errors or omissions. Verify clinically important information with the original publication.

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