Numerous non-enlarged mesenteric lymph nodes, particularly around the root of the mesentery.
Small bowel dilated up to 3.5 cm diameter with air-fluid levels, no apparent transition point. Levels in the transverse colon, small levels in the ascending colon. Several ileal loops show strongly enhancing walls of up to 9 mm in thickness. Hyperaemia and fat stranding around said loops, Non-enlarged reactive regional mesenteric lymph nodes present. Minimal amount of free intraperitoneal fluid nearby. Findings highly suggestive of active Crohn disease.
Skeleton: Numerous syndesmophytes. Ankylosis of the left sacroiliac joint (SIJ) and narrowing of the right one with the creation of a small bony bridge. Findings consistent with ankylosing spondylitis (AS).