Table 8.

Summary of CT findings of colitides and enteritides in the immune compromised host.

	Bowel wall thickening (%)	Wall nodularity (%)	Contrast enhancement (%)	Bowel dilatation (%)	Mesenteric stranding (%)	Ascites (%)	Distribution	Normal findings (%)	Discriminating features
PMC	86 (11–15 mm)	38%	18 (target enhancement)	14	45 (mild)	38	Pancolonic (in 46%)	14	Accordion sign
Typhlitis	100 (7 mm)	2%	28	38	51 (pronounced)	43	Right colon ± small bowel		Pneumatosis intestinalis (20%)
CMV	92 (15 mm)		29 (target enhancement)		92	42	<5% pancolonic, 40% small bowel	8	Deep ulceration, adenopathy (16%)
GVHD	100 (small bowel), 59 (large bowel)		54	23–86	73	28–45			Splenomegaly (36%), peri-portal oedema (36%), GB wall enhancement (23%)