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Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal BarrierA...
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Granulocyte-dependent Autoantibody-induced Skin Blistering
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Multisystem Mucosal Morbidity in Recessive Dystrophic Epidermolysis Bullosa Inversa.

Valerie R Stichert1, Nichole Halliburton2, Sarah Crawford2

  • 1University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.

Pediatric Dermatology
|June 25, 2026
PubMed
Summary

Mucosal disease is a defining feature of recessive dystrophic epidermolysis bullosa inversa (RDEB-I), causing significant morbidity. This study highlights the universal and multisystem nature of RDEB-I mucosal involvement and its substantial procedural burden.

Keywords:
dystrophic epidermolysis bullosaepidermolysis bullosaesophageal dilationinversa phenotypemucosal disease

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Published on: August 11, 2023

Area of Science:

  • Dermatology and Genetics
  • Rare Disease Research
  • Gastroenterology and Otolaryngology

Background:

  • Recessive dystrophic epidermolysis bullosa inversa (RDEB-I) is a rare genodermatosis.
  • Mucosal involvement is recognized but its full clinical impact is poorly understood.
  • This study details the extent and consequences of mucosal disease in RDEB-I.

Purpose of the Study:

  • To systematically describe mucosal involvement in RDEB-I.
  • To identify associated complications and procedural interventions.
  • To characterize the clinical burden of mucosal disease in RDEB-I patients.

Main Methods:

  • Retrospective chart review at a multidisciplinary EB center.
  • Documentation of mucosal involvement across organ systems.
  • Analysis of complications, procedures, and COL7A1 variants.

Main Results:

  • All 10 RDEB-I patients had universal oral, esophageal, and anorectal involvement.
  • Frequent otologic, genitourinary, and ocular disease were observed.
  • Patients experienced significant morbidity with numerous complications and procedures, particularly for esophageal disease.

Conclusions:

  • Mucosal disease is a hallmark of RDEB-I, driving substantial morbidity.
  • Multisystem mucosal involvement necessitates comprehensive management strategies.
  • Accurate assessment of disease severity requires recognizing the full scope of mucosal manifestations.