Adult-onset Still's disease preceding Crohn's disease

Konstantinos H Katsanos1, Vasiliki Siozopoulou, Dimitrios Sigounas

  • 11st Division of Internal Medicine & Hepato-Gastroenterology Unit, Medical School, University of Ioannina, Ioannina 45110, Greece.

Insights

This case study highlights the rare co-occurrence of adult-onset Still's disease and Crohn's disease. Early diagnosis and multidisciplinary management are crucial for patients with these overlapping inflammatory conditions.

Area of Science:

  • Rheumatology
  • Gastroenterology
  • Immunology

Background:

  • Concomitant diagnosis of Crohn's disease (CD) and idiopathic arthritis is uncommon, suggesting potential shared genetic or immunological underpinnings.
  • Adult-onset Still's disease (AOSD) is a rare systemic inflammatory disorder characterized by fever, rash, and arthritis.

Observation:

  • A 38-year-old male with a history of AOSD since age 24 presented with bloody diarrhea.
  • Initial laboratory tests showed mild anemia, elevated erythrocyte sedimentation rate, and C-reactive protein.
  • Ileocolonoscopy and capsule endoscopy revealed aphthoid ulcers in the terminal ileum and distal jejunum.

Findings:

  • Biopsies confirmed Crohn's disease in the terminal ileum.
  • The patient was initiated on mesalamine and azathioprine for Crohn's disease management.
  • This represents the first reported case of concomitant adult-onset Still's disease and Crohn's disease.

Implications:

  • The co-existence of these conditions may indicate shared inflammatory pathways.
  • Accurate diagnosis and integrated therapeutic strategies are essential for managing patients with both AOSD and CD.
  • Further research is needed to elucidate the relationship between these diseases and the role of novel biologic agents.

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