Hypercholesterolaemic arthropathy in primary biliary cirrhosis

Area of Science:

• Rheumatology
• Hepatology
• Immunology

Background:

• Primary biliary cirrhosis (PBC) is a chronic autoimmune liver disease.
• Hypercholesterolemia, elevated cholesterol levels, is a known comorbidity in some PBC patients.
• Articular manifestations in PBC are uncommon but can occur.

Observation:

• A patient with primary biliary cirrhosis presented with severe, transient fitting polyarthritis.
• The polyarthritis episodes were characterized by sudden onset of peripheral joint pain and effusion.
• Overlying skin redness and symptoms often followed unusual physical exertion.

Findings:

• Hypercholesterolemia is proposed as the causative factor for acute inflammatory periarthritis and peritendinitis in this context.
• The clinical presentation suggests a distinct pattern of inflammatory arthropathy associated with metabolic derangements in PBC.
• This specific polyarthritis appears to be a transient phenomenon.

Implications:

• This finding expands the understanding of potential extrahepatic manifestations of primary biliary cirrhosis.
• Identifying hypercholesterolemia as a trigger offers a new perspective on managing joint symptoms in PBC patients.
• Cholestyramine, a bile acid sequestrant, may be a therapeutic option to prevent recurrent episodes of this specific arthritis.