| FIGURE 2.1.1 Mild ulcerative colitis. Contrast-enhanced CT images (A and B) show uniform and contiguous mild colonic wall thickening of the left colon and rectum that returns to normal near the hepatic flexure. Note prominent pericolonic vasculature supplying the involved areas. Optical colonoscopy image (C) from a second patient shows a granular mucosal pattern with patchy erythema. Double-contrast BE image (D) and magnified view (E) from a third patient show diffuse granularity of the distal colonic and rectal mucosa. Note the contiguous extension with abrupt transition to the normal proximally. Colonoscopy image (F) from a fourth patient shows mucosal granularity, patchy erythema, and mucopus. Colonoscopy images (G to I) from a final patient show mild rectal inflamation (G). The remainder of the colonic mucosa was normal (H), except for a focal area of periappendiceal inflamation (I). This discontinuous mucosal inflammation is a variant seen in distal UC and should not be confused with Crohn's disease. |
Atlas of Gastrointestinal Imaging Figure 2.1.1 Mild ulcerative colitis
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