Histopathological characterization of cholecystectomy specimens in patients with inflammatory bowel disease

Departments of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, United States.
Journal of Crohn s and Colitis (Impact Factor: 6.23). 02/2012; 6(9):895-9. DOI: 10.1016/j.crohns.2012.02.002
Source: PubMed


Inflammatory bowel disease is associated with increased risk of cholelithiasis. However, the histologic patterns in gallbladders have not been extensively studied. This study is designed to characterize the histopathologic features of cholecystectomy specimens in inflammatory bowel disease patients, compared to a control group.
Cholecystectomy specimens in 78 Crohn's disease patients and 50 ulcerative colitis patients were reviewed. These were compared with 93 cholecystomies from noninflammatory bowel disease patients of approximate age and sex. The pattern and extent of inflammation was noted.
Marked chronic cholecystitis was present in 12% of ulcerative colitis patients (P<0.05) and 10.3% of Crohn's disease patients (P>0.05), compared to 4.3% of the noninflammatory bowel disease control group. Eight percent of ulcerative colitis patients (P<0.05) and 2.6% of Crohn's disease patients (P>0.05) had acute serositis, compared to 0% of the noninflammatory bowel disease control. The third inflammatory pattern, nodular lymphoid aggregates, was significantly increased in Crohn's disease patients after adjusting for the effect of cholelithiasis. Nodular lymphoid aggregates were found in 21.2% of Crohn's disease patients and 9.7% of ulcerative colitis patients without cholelithiasis, compared to 5% of noninflammatory bowel disease controls without cholelithiasis, a statistically significant difference between the Crohn's disease and control groups (P<0.05).
Inflammatory bowel disease patients show similar inflammatory patterns in cholecystectomy specimens compared to the general population. However, two inflammatory patterns that occur more often in ulcerative colitis patients are marked chronic cholecystitis and acute serositis, while nodular lymphoid aggregates are more common in Crohn's disease patients.

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