chapter  14
Clinical Picture of Crohn's Disease: Upper Gastrointestinal Tract
Pages 18

Crohn 's jejunoileitis was farst described in detail by Crohn and Yunich in 1941 (1 ). Seventeen of 200 patients with regional enteritis had jejunal involvement They noted some features that differed from those of ileitis, specifically, an absence of masses, fistulas, or anorectal complications in their patients with jejunoileitis. In fact, fistulas may complicate jejunitis, but they do so less commonly than terminal ileitis. The authors also failed to observe obstructive complications, which are a feature of long-standing disease.