Archives of the AFIP -- RadioGraphics 1995; 15: 1155-1178

Figure Legend | Panel A | Panel B | Panel C | Panel D

Figure 13: Small bowel non-Hodgkin lymphoma in a 35-year-old man with AIDS with intussusception. Panel A Radiograph from a single-contrast barium enema study shows a large filling defect within the cecum and ascending colon with a coil-spring appearance, typical of an intussusception. Panel B Contrast-enhanced CT scan shows a "mass" with alternating low- and high-attenuation stripes (target lesion), a finding that helps confirm the diagnosis of intussusception. No leading point or mass was demonstrated. Panel C Gross specimen of the resected intussusception shows telescoping of the terminal ileum within the lumen of the cecum and ascending colon. Panel D Photomicrograph (original magnification, X2.5; H-E stain) of the resected ileum shows marked thickening of the subserosa by a high-grade lymphoma. L = lumen. The epithelium is entirely denuded due to intussusception.

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