case_images: PMC5306967_01
case_images: (a) Necrotic incarcerated hemorrhoids and necrotic perineal tissues. (b) Wound after removal of necrotic hemorrhoids and debridement of necrotic tissues.
case_images: CRIS2017-2062157.001.jpg
case_images: PMC5306967_01_CRIS2017-2062157.001.jpg
case_images: fig1
case_images: Nonreducible internal hemorrhoids were seen (Figure 1(a)). After fluid resuscitation and antibiotic administration, emergent debridement of necrotic tissues and hemorrhoidectomy were performed (Figure 1(b)).
case_images: Colonoscopy: total stenosis with scarring.
case_images: CRIS2017-2062157.002.jpg
case_images: PMC5306967_01_CRIS2017-2062157.002.jpg
case_images: fig2
case_images: Severe anal stenosis was found on physical examination, and total colonoscopy was performed before surgery, which showed a complete anal stricture (Figure 2).