Large colonic lipoma with a laterally spreading tumor treated by endoscopic submucosal dissection: A case report

Figure 3 Pathologic findings. A: Macroscopically, a yellow lipoma was observed in the submucosa and a laterally spreading tumor was observed on the mucosal surface; B: The black color at the bottom of the lipoma was not a burnt area due to electrical thermal injury, but a stain indicated the border of the bottom for pathological evaluation; C: Microscopically, the mucosal lesion on the surface of the lipoma showed tubulovillous adenoma with low-grade dysplasia (H&E staining, magnification × 12.5).