Table 3.

Histopathologic findings in affected patients

Case	Histopathologic findings	Intervention	Intestinal involvement
1	Colonic mucosa with mild acute inflammation, focal ulceration, and granulation tissue	Colonoscopy	Right colon, splenic flexure
2	Hemorrhagic and hyperemic mucosa with focal transmural necrosis and fibrinoinflammatory exudates	Colectomy	Pancolonic
3	Ulcerated mucosa with fibrinoinflammatory exudates and focal necrosis	Colonoscopy	Right colon
4	Mucosa with acute colitis and fibrinopurulent exudates	Colonoscopy	Sigmoid colon, rectum
5	Transmural necrosis, perforation, and acute and chronic serositis	Small bowel resection	Small bowel
6	Focal necrosis and necroinflammatory exudates	Colonoscopy	Right colon
7	Diffuse transmural necrosis	Colectomy	Pancolonic
8	Ulcerated colonic mucosa with reactive epithelial changes	Colonoscopy	Rectum
9	Mucosal necrosis with necroinflammatory exudates	Colonoscopy	Left colon
10	Segmental ischemic necrosis, focally transmural, with evidence of perforation. Supportive serositis	Colectomy	Small intestine; right and transverse colon
11	Necrotic mucosa and fibrinopurulent debris	Colonoscopy	Right colon