case_images: PMC7378708_01
case_images: Abdominal CT scan confirmed small bowel obstruction and concurrent megacolon dilated up
  to 15 cm in diameter (a). Grossly, there was intestinal dilation up to 15 cm with
  prominent brown discoloration of bowel wall (arrow), and no strictures or other fixed
  obstruction were identified (b).
case_images: 10.1177_2050313X20945531-fig1.jpg
case_images: PMC7378708_01_10.1177_2050313X20945531-fig1.jpg
case_images: fig1-2050313X20945531
case_images: In addition, the CT scan showed a concurrent megacolon dilated up to 15 cm in diameter (Figure 1(a)). Grossly, there was intestinal dilation up to 15 cm with prominent brown discoloration of bowel wall (Figure 1(b)).
case_images: Microscopic examination revealed prominent lipofuscin-like pigment deposition (arrow)
  which can be appreciated at low power (a), involving the muscularis propria (arrow) (b),
  muscularis mucosae (arrow) (c), and vascular smooth muscle (arrow) (d).
case_images: 10.1177_2050313X20945531-fig2.jpg
case_images: PMC7378708_01_10.1177_2050313X20945531-fig2.jpg
case_images: fig2-2050313X20945531
case_images: Microscopic examination revealed prominent lipofuscin-like pigment deposition (greater in the ileum) (Figure 2(a)), involving the muscularis propria (Figure 2(b)), muscularis mucosae (Figure 2(c)), and, to a lesser extent, the vascular smooth muscle (Figure 2(d)).