Gastrointestinal mucosal involvement without amyloidosis in children with familial Mediterranean fever

Odul Egritas Gurkan1, Buket Dalgic

  • 1Department of Pediatric Gastroenterology, Gazi University School of Medicine, Ankara, Turkey. odulmd2003@yahoo.com

Abstract

Insights

Familial Mediterranean fever (FMF) can cause gastrointestinal issues. This study found that FMF patients can experience mucosal inflammation and ulcers in the stomach and colon, even without amyloidosis.

Area of Science:

  • Pediatric Gastroenterology
  • Rheumatology
  • Genetics

Background:

  • Familial Mediterranean fever (FMF) is a genetic autoinflammatory disorder.
  • Gastrointestinal (GI) manifestations are common in FMF, potentially linked to co-occurring conditions like inflammatory bowel disease.
  • GI symptoms can also arise directly from FMF or its associated complications such as vasculitis or amyloidosis.

Purpose of the Study:

  • To investigate and document the spectrum of gastrointestinal involvement in pediatric patients diagnosed with Familial Mediterranean fever.
  • To characterize the endoscopic and histopathologic findings of GI mucosal involvement in FMF.

Main Methods:

  • Retrospective analysis of medical records of pediatric FMF patients diagnosed between 2007 and 2012.
  • Diagnostic methods included clinical evaluation, laboratory tests, colonoscopy, upper GI endoscopy, and genetic analysis.
  • Focus on patients presenting with GI symptoms like vomiting or diarrhea.

Main Results:

  • Eleven out of 36 pediatric FMF patients presented with significant gastrointestinal symptoms, primarily vomiting and diarrhea.
  • Endoscopic examination revealed colonic inflammation and multiple gastric aphthous ulcerations in these patients.
  • Histopathologic investigations confirmed GI mucosal involvement, notably in the absence of amyloidosis.

Conclusions:

  • Gastrointestinal mucosal involvement, including inflammation and ulceration, is a documented manifestation in pediatric FMF patients.
  • These findings can occur independently of amyloidosis, suggesting a direct link to FMF activity.
  • GI symptoms and mucosal changes may represent attack-related manifestations of Familial Mediterranean fever.

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