Differential diagnosis of Crohn's disease and intestinal tuberculosis in patients with spontaneous small-bowel perforation

Dig Surg. 2014;31(2):151-6. doi: 10.1159/000363066. Epub 2014 Jun 21.

Abstract

Background/aims: Spontaneous small-bowel perforation caused by Crohn's disease (CD) or intestinal tuberculosis (ITB) is a rare disease entity. We investigated the clinical features and radiologic findings of patients with CD or ITB who presented with a spontaneous small-bowel perforation.

Methods: Between January 2001 and December 2010, sixty-two patients underwent surgery due to a spontaneous small-bowel perforation, including 21 (33.9%) CD patients and 18 (29.0%) ITB patients. Clinical and radiologic features were compared between CD and ITB patients.

Results: The mean age was significantly lower in CD patients than in ITB patients (p = 0.014). Diarrhea was more common in CD. By contrast, night sweating and a previous history of tuberculosis were more common in ITB. Only 27.8% of patients with ITB had a positive QuantiFERON-TB Gold test. CT findings such as bowel wall thickening of more than 10 mm, omental thickening, and intra-abdominal lymphadenopathy larger than 10 mm were more common among perforations caused by ITB. Mesenteric fat infiltration was a more frequent finding in CD than in ITB.

Conclusions: Clinical symptoms and radiologic findings may aid in the differential diagnosis between CD and ITB in patients presenting with spontaneous small-bowel perforation.

MeSH terms

  • Adult
  • Age Factors
  • Crohn Disease / complications
  • Crohn Disease / diagnosis*
  • Crohn Disease / diagnostic imaging
  • Diagnosis, Differential
  • Diarrhea / etiology
  • Female
  • Humans
  • Interferon-gamma Release Tests
  • Intestinal Perforation / etiology*
  • Intestinal Perforation / surgery
  • Intestine, Small*
  • Male
  • Middle Aged
  • Recurrence
  • Sweating
  • Tomography, X-Ray Computed
  • Tuberculosis, Gastrointestinal / complications
  • Tuberculosis, Gastrointestinal / diagnosis*
  • Tuberculosis, Gastrointestinal / diagnostic imaging
  • Young Adult