PMC7292965_01
Gross appearance of the jejunal mucosa on cut section. Note the prominent edema, mural thickening, and reddening visible. The inset shows the jejunal mucosa magnified.
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fig1
Postmortem examination revealed diffuse edema and mural thickening of the jejunum and ileum (Figure 1).
(a) Photomicrograph of the small intestinal mucosa and submucosa. The lamina propria and submucosa are expanded by chronic nonsuppurative inflammation with vascular congestion, acute erosive necrotizing enteritis, and bacterial colonization of necrotic surface debris. Hematoxylin and eosin, x100 magnification. (b) Photomicrograph of the small intestinal submucosa. Periarterial nonsuppurative inflammation is visible, with acute changes including lymphatic dilation, edema, and segmental leukocytoclastic necrotizing arteritis. Hematoxylin and eosin, x100 magnification.
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fig2
Histopathologic findings revealed suppurative gastritis with ulceration, acute erosive necrotizing enteritis with Paneth cell metaplasia (Figure 2), colonic arteritis with thrombosis, and portal to centrilobular bacterial hepatitis.