Primary Biliary Cholangitis Overlap With Autoimmune Hepatitis? A Case Report.

Area of Science:

• Hepatology
• Autoimmune diseases
• Gastroenterology

Background:

• Primary biliary cholangitis (PBC) is a chronic autoimmune cholestatic liver disease.
• PBC involves inflammation of small and medium bile ducts, potentially leading to cirrhosis.
• Overlap syndromes between PBC and autoimmune hepatitis (AIH) occur in 2-19% of patients.

Observation:

• A 39-year-old male patient exhibited altered liver biochemistry over six years.
• The patient was asymptomatic during the initial six-year period.
• Diagnostic investigations confirmed primary biliary cholangitis.

Findings:

• The patient's presentation included features suggestive of autoimmune hepatitis.
• This case illustrates a diagnostic challenge due to overlapping autoimmune liver disease features.
• The diagnosis of PBC was established despite concurrent AIH-like characteristics.

Implications:

• This case underscores the importance of recognizing overlapping features in autoimmune liver diseases.
• Accurate diagnosis is crucial for appropriate management of primary biliary cholangitis and autoimmune hepatitis.
• Further research into the pathogenesis and management of PBC-AIH overlap is warranted.