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Figure 11b.   Chemotherapy-induced enteropathy with diffuse intestinal necrosis in the ileum in a 65-year-old woman who received chemotherapy for leukemia. (a) Contrast-enhanced CT scan shows bowel wall thickening in the distal ileum with a target appearance (arrows) and a regional fluid collection due to hemoperitoneum. (b) CT scan obtained at a lower level shows homogeneous bowel wall thickening in the ileum (open arrows) and a localized collection of intraperitoneal free gas (solid arrows).