Figure 4.

 (A) T1 weighted three dimensional GRE image (TR/TE 3.1/1.1) of 31 year old male patient with known Crohn’s disease. An inflammatory process was detected in the rectum and sigmoid colon (arrow). (B) Detailed display of (A). Loss of haustral markings and increased contrast uptake of the colonic wall as well as bowel wall thickening were determined leading to a diagnosis of inflammation. (C) On the axial reformatted image, several mesenteric lymph nodes were found (arrow). Subsequent endoscopy and biopsy confirmed the presence of an acute moderate inflammation of the sigmoid colon.