Is lymphatic invasion of microrectal neuroendocrine tumors an incidental event?: A case report

Figure 1 The endoscopic manifestation of the rectal neuroendocrine tumor. A-C: Rectal neuroendocrine tumor (rNET): under a white light endoscope, the surface is smooth, sessile, and the same color as the surrounding mucosa (A); after biopsy forceps (B); the first hematoxylin and eosin (H&E) stained pathological smear after the tumor was removed by biopsy forceps (C, × 40). Endoscopic submucosal dissection (ESD) remedial treatment; D-F: Under white light endoscope, before ESD (D); after additional ESD (E); HE stained pathological smears of specimens after ESD (F, × 40).