case_images: PMC7787840_01
case_images: Atypical perianal lesion.
case_images: CRIPE2020-8832856.001.jpg
case_images: PMC7787840_01_CRIPE2020-8832856.001.jpg
case_images: fig1
case_images: A physical examination revealed an atypical perianal lesion with tenderness on palpation (Figure 1).
case_images: The perianal lesion was confirmed to extend into the anus.
case_images: CRIPE2020-8832856.002.jpg
case_images: PMC7787840_01_CRIPE2020-8832856.002.jpg
case_images: fig2
case_images: Under general anesthesia, the perianal lesion was confirmed to extend into the anus (Figure 2), inducing rectal ulcer with a diameter of about 1.5 cm.
case_images: PMC7787840_02
case_images: Colonoscopy showed rectal longitudinal ulcers.
case_images: CRIPE2020-8832856.003.jpg
case_images: PMC7787840_02_CRIPE2020-8832856.003.jpg
case_images: fig3
case_images: At 117 days old, colonoscopy showed two rectal longitudinal ulcers (Figure 3).
case_images: Histology showed no granulomas but patchy inflammation reaching the submucosal layer (10x magnification).
case_images: CRIPE2020-8832856.004.jpg
case_images: PMC7787840_02_CRIPE2020-8832856.004.jpg
case_images: fig4
case_images: Histology showed no granulomas but patchy inflammation reaching the submucosal layer (Figure 4).