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Polymyositis associated with primary biliary cirrhosis

K A Boki¹, S P Dourakis

¹Department of Rheumatology KAT Hospital, Athens, Greece.

Clinical Rheumatology

|May 1, 1995

Summary

The rare coexistence of polymyositis (PM) and primary biliary cirrhosis (PBC), both autoimmune diseases, is presented in a 46-year-old woman. This case highlights the diagnostic criteria for both conditions.

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Area of Science:

Autoimmune diseases
Hepatology
Neurology

Background:

Polymyositis (PM) and primary biliary cirrhosis (PBC) are distinct autoimmune disorders.
The simultaneous occurrence of PM and PBC is exceptionally rare in medical literature.

Observation:

A 46-year-old woman presented with symptoms indicative of both polymyositis and primary biliary cirrhosis.
Clinical presentation included symmetrical proximal muscle weakness and elevated muscle enzymes.

Findings:

Diagnosis of polymyositis was confirmed via electromyography and muscle biopsy.
Primary biliary cirrhosis diagnosis was supported by elevated liver enzymes (alkaline phosphatase, gamma glutamyltransferase), elevated IgM, antimitochondrial antibodies, and liver biopsy findings.

Implications:

This case contributes to the limited understanding of the PM-PBC association.
Highlights the importance of considering multiple autoimmune conditions in complex patient presentations.
Further research may elucidate shared etiological factors or pathogenic mechanisms.

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