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. 2024 Oct 17;17:7401–7407. doi: 10.2147/JIR.S478481

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© 2024 Wu et al.

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Endoscopic and histopathological findings in ischemic colitis in patients with COVID-19 across multiple colonoscopies. (a–c) First colonoscopy. (a) Terminal ileum. (b) Ascending colon. (c) Decreasing colon: discontinuous lesion, superficial ulcer, erosion, hyperemia and edema, disappearance of vascular texture. (d) 2nd colonoscopy: ascending colon. (e) 3rd colonoscopy: ascending colon. (f) Histopathology of biopsy specimens from the descending colon from the first colonoscopy showing ischemic colitis. mucus deficiencyΔ, atrophy and reduction of crypts★, intercellular substance hemorrhage and hyalinization▲ (hematoxylin and eosin [H&E]×10). The purple triangle observed in the pathological images is identified as a staining artifact, which does not represent a true tissue feature. This has been clarified to ensure accurate interpretation of the results.