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Refractory Celiac Disease.

Georgia Malamut1, Christophe Cellier1

  • 1Paris Descartes University, 15 rue de l'Ecole de Médecine, Paris 75006, France; Gastroenterology Department, Hôpital Européen Georges Pompidou, APHP, 20 rue Leblanc, Paris 75015, France; UMR1163 Institute Imagine, 24 Boulevard du Montparnasse, Paris 75015, France.

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Summary
This summary is machine-generated.

Refractory celiac disease (RCD) persists despite a gluten-free diet, making diagnosis challenging. Subtypes include RCDI (normal intraepithelial lymphocytes) and RCDII (abnormal IELs), which indicates a poor prognosis and risk of lymphoma.

Keywords:
Cytokine IL-15Enteropathy-associated T-cell lymphomaPhenotype of intraepithelial lymphocytesRefractory celiac disease

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Area of Science:

  • Gastroenterology
  • Oncology
  • Immunology

Background:

  • Refractory celiac disease (RCD) is defined by persistent malnutrition and villous atrophy despite a strict gluten-free diet (GFD).
  • Accurate diagnosis and classification of RCD are crucial for appropriate patient management and follow-up.
  • RCD is categorized into two subtypes: RCDI with normal intraepithelial lymphocytes (IELs) and RCDII with abnormal IELs.

Purpose of the Study:

  • To elucidate the diagnostic challenges and clinical implications of Refractory Celiac Disease.
  • To differentiate between RCDI and RCDII and their respective prognoses.
  • To highlight the association of RCDII with low-grade intraepithelial lymphoma and increased risk of overt lymphoma.

Main Methods:

  • Review of clinical data and diagnostic criteria for RCD.
  • Histopathological examination of intestinal biopsies to assess IEL phenotype.
  • Analysis of patient outcomes, including disease progression and lymphoma development.

Main Results:

  • RCD diagnosis requires over 1-2 years of persistent symptoms despite a strict GFD.
  • RCDII, characterized by abnormal IELs, is recognized as a precursor to or low-grade intraepithelial lymphoma.
  • Patients with RCDII face a significantly poorer prognosis due to dissemination and a higher likelihood of developing overt lymphoma.

Conclusions:

  • Refractory celiac disease presents diagnostic and therapeutic challenges.
  • The distinction between RCDI and RCDII is critical for prognostication and management strategies.
  • RCDII necessitates vigilant monitoring due to its association with intraepithelial lymphoma and high risk of progression.