PMC8035536_01
Stenotic inflamed segment in the diverted colon with loss of mucosal folds and vascular markings demonstrated at sigmoidoscopy
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F1
A flexible sigmoidoscopy performed one month after the onset of symptom showed an absence of mucosal folds or vascular markings with friability causing marked contact bleeding from the scope (Figure 1).
Recto-sigmoid biopsy taking from the diverted colon showing Neutrophils extending into the glands consistent with an acute colitis
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F2
Histology from a colon biopsy demonstrated features consistent with acute colitis with neutrophils extending into the glands and focal areas of mucosal ulceration (Figure 2). 