Primary Immunodeficiency and the Gut

Area of Science:

• Gastroenterology
• Immunology
• Hepatology
• Pancreatology

Background:

• Primary immunodeficiency diseases (PIDs) encompass a heterogeneous group of genetic disorders affecting the immune system.
• Gastrointestinal, hepatic, and pancreatic manifestations are increasingly recognized as significant complications of PIDs.
• Early diagnosis and appropriate management are crucial for improving outcomes in patients with PIDs.

Purpose of the Study:

• To provide a comprehensive overview of the gastrointestinal, hepatic, and pancreatic manifestations associated with primary immunodeficiency diseases.
• To outline current recommendations for laboratory testing and endoscopic evaluation in diagnosing these manifestations.
• To offer guidance on the further management of affected patients.

Main Methods:

• Literature review of common PIDs with gastrointestinal, hepatic, and pancreatic involvement.
• Synthesis of information on diagnostic approaches, including serological tests, genetic testing, and endoscopic procedures.
• Compilation of evidence-based recommendations for clinical management.

Main Results:

• Common gastrointestinal manifestations include inflammatory bowel disease-like symptoms, malabsorption, and infections.
• Hepatic manifestations can range from autoimmune hepatitis and cirrhosis to infections and malignancies.
• Pancreatic involvement may present as pancreatitis, exocrine insufficiency, or pancreatic masses.

Conclusions:

• Gastrointestinal, hepatic, and pancreatic manifestations are frequent and diverse in primary immunodeficiency diseases.
• A systematic approach involving targeted laboratory testing and endoscopic evaluation is essential for diagnosis.
• Multidisciplinary management strategies are required to address the complex needs of these patients.