Perianal complications (eg, perianal fissures or fistulas, abscesses, rectal prolapse) may be observed in up to 90% of patients with Crohn disease. Growth retardation may be the only presenting sign of IBD in young patients.
The physical examination in patients with IBD should also include a search for extraintestinal manifestations, such as iritis, episcleritis, arthritis, and dermatologic involvement. Patients with IBS typically have an overall healthy appearance but may be tense or anxious. They may present with sigmoid tenderness or a palpable sigmoid cord.
For more on the physical examination of IBD, read here.
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Cite this: Jamie Shalkow, Daniel Margain. Fast Five Quiz: Do You Know Key Differences Between Irritable Bowel Syndrome and Inflammatory Bowel Disease? - Medscape - Jul 12, 2018.