PMC7250379_01
Colonoscopy image showing an oedematous and hyperaemic mucosa of the sigmoid tract with multiple erosions and ulcerations, tending to be confluent and circumferential.
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F1
We then performed a colonoscopy, which documented erosive-ulcerative colitis of the sigmoid and the descending colon (Fig. 1), with a normal rectal mucosal surface.
Histological examination of the descending-sigmoid colon biopsies showed ischaemic colitis (A, arrow) with focal pseudomembranous areas (B, arrows): highly hyperplastic glandular elements mixed with atrophic crypt elements immersed in a homogeneously inflamed and vascularised lamina propria with erosion of the surface's coat, in which there were mixed inflammatory elements like neutrophils and most of all eosinophils. HE. x20.
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PMC7250379_01_crg-0014-0242-g02.jpg
F2
Histological examination of the colon biopsies revealed a normal rectal mucosa with prolapsed areas and an IC appearance (coagulative necrosis of the superficial epithelium) with focal pseudomembranous areas (aggregates of hyaline material intermingled with eosinophils) in the descending-sigmoid colon (Fig. 2).