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case_images: Colonoscopy picture (sigmoid colon) from case No. 1.
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case_images: Limited colonoscopy revealed extensive mucosal oedema and erythema with pseudomembranes in the rectum and sigmoid colon suggesting possible Clostridioides difficile-associated pseudomembranous colitis (Figure 1).
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case_images: Colonoscopy images from case no. 2.
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case_images: An abdominal ultrasound showed left-sided colonic wall thickening and subsequent sigmoidoscopy revealed diffuse mucosal erythema with numerous patchy exudates suggestive of pseudomembranes (Figures 2 and 3).
case_images: Additional Colonoscopy images from case no. 2.
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case_images: An abdominal ultrasound showed left-sided colonic wall thickening and subsequent sigmoidoscopy revealed diffuse mucosal erythema with numerous patchy exudates suggestive of pseudomembranes (Figures 2 and 3).
case_images: Mucosal histopathology pictures from case No. 2.
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case_images: Variably dilated crypts partly filled with mucus and neutrophils, with superficial epithelial loss and variably expanded lamina propria were also seen (Figure 4).
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case_images: Colonoscopy image of case No. 3.
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case_images: So, urgent colonoscopy was performed and it revealed extensive mucosal oedema and erythema with overlying patchy exudates in the rectum and sigmoid, consistent with pseudomembranous colitis (Figure 5).
case_images: Mucosal histopathology pictures from case no. 3.
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case_images: In addition, surface ulceration with necro-inflammatory pseudomembranous exudate mixed with mucus was seen and these histo-pathological findings were suggestive of pseudomembranous colitis (Figures 6 and 7).
case_images: Additional histopathology pictures from case no. 3.
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case_images: In addition, surface ulceration with necro-inflammatory pseudomembranous exudate mixed with mucus was seen and these histo-pathological findings were suggestive of pseudomembranous colitis (Figures 6 and 7).
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case_images: Abdominal CT of case no. 4.
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case_images: Abdominal CT scan showed diffuse large bowel wall thickening suggesting possible infectious pan-colitis (Figure 8).
case_images: Colonoscopy pictures from case no. 4.
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case_images: Subsequent sigmoidoscopy revealed diffuse mucosal erythema with pseudomembranes (Figure 9).