PMC9718997_01
Sigmoidoscopy: Diffuse mucosal inflammation with loss of vascular markings due to engorgement of the mucosa, exudates, edema, touch friability, and spontaneous bleeding in the rectum.
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On day 35 of hospitalization, sigmoidoscopy demonstrated diffuse mucosal inflammation with loss of vascular markings due to engorgement of the mucosa, exudates, edema, touch friability, and spontaneous bleeding in the rectum (Fig. 1).
Histopathology: Shows crypt disarray, epithelial cell abnormalities, increased lamina propria cellularity, basal plasmacytosis, and lamina propria eosinophils (hematoxylin and eosin staining; x20).
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Furthermore, increased lamina propria cellularity, basal plasmacytosis, and lamina propria eosinophils, which are consistent with ulcerative colitis, were evident (Fig. 2).
(A) Abdominal x-ray: A dilated colon > 12 cm in diameter. (B) Non-contrast-enhanced abdominal CT: Colonic dilatation with no sign of thromboses or mechanical obstruction.
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On day 62 of hospitalization, abdominal X-ray demonstrated a dilated colon > 12 cm in diameter (Fig. 3a), and non-contrast-enhanced abdominal CT confirmed this colonic dilatation with no sign of thromboses or mechanical obstruction (Fig. 3b).