IgG4-Related Retroperitoneal Fibrosis in a Patient With B-Cell Lymphoproliferative Disorder

Rida Inam1, Asim Mehmood1, Attia Mahmood2

  • 1Internal Medicine, Shifa College of Medicine, Islamabad, PAK.

Cureus
|August 22, 2024
PubMed

Insights

This case report highlights IgG4-related retroperitoneal fibrosis (RF), a rare condition diagnosed via endoscopic ultrasound (EUS)-guided biopsy. Early consideration of RF is crucial for patients with unexplained abdominal pain.

Area of Science:

  • Gastroenterology and Immunology
  • Pathology

Background:

  • IgG4-related retroperitoneal fibrosis (RF) is a rare condition characterized by chronic inflammation and fibrosis in the retroperitoneum.
  • Diagnosis can be challenging due to vague presenting symptoms and the need for specialized imaging and biopsy techniques.

Observation:

  • A 25-year-old male presented with six months of unexplained abdominal pain.
  • Endoscopic ultrasound (EUS)-guided biopsy confirmed IgG4-related retroperitoneal fibrosis (RF).

Findings:

  • The patient was diagnosed with IgG4-related RF, a rare entity, particularly in association with B-cell lymphoproliferative disorder.
  • This represents the first reported case of IgG4-related RF in a patient with B-cell lymphoproliferative disorder from Pakistan.

Implications:

  • This case underscores the importance of considering IgG4-related RF (Ormond's disease) in the differential diagnosis of patients with persistent, vague abdominal pain.
  • Increased awareness and diagnostic diligence are essential for timely identification and management of this rare condition.