[Primary intestinal lymphangiectasia (Waldmann's disease)]

Area of Science:

• Gastroenterology
• Rare Diseases
• Pediatric Gastroenterology

Background:

• Primary intestinal lymphangiectasia (PIL), or Waldmann's disease, is a rare condition.
• It involves dilated intestinal lacteals causing lymph and protein loss into the small bowel.
• This leads to protein-losing enteropathy, resulting in lymphopenia, hypoalbuminemia, and hypogammaglobulinemia.

Purpose of the Study:

• To summarize the key aspects of Primary Intestinal Lymphangiectasia.
• To highlight diagnostic methods and management strategies for PIL.
• To inform about potential complications and follow-up recommendations.

Main Methods:

• Diagnosis relies on clinical presentation (e.g., edema), elevated 24-h stool α1-antitrypsin clearance.
• Endoscopic visualization of intestinal lymphangiectasia with biopsy confirmation is crucial.
• Videocapsule endoscopy can aid diagnosis when standard endoscopy is inconclusive.

Main Results:

• PIL typically presents before age three, but can occur in older individuals.
• Bilateral lower limb edema is a primary symptom, potentially progressing to effusions or ascites.
• Associated conditions include gastrointestinal B-cell lymphomas.

Conclusions:

• A strict low-fat diet with medium-chain triglyceride and vitamin supplementation is the primary treatment.
• Octreotide may be used adjunctively with variable success.
• Surgical resection is an option for localized disease, and long-term follow-up is essential.