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Supine and erect abdominal radiographs. There is thumbprinting along the transverse colon inferring bowel wall edema. Small amount of fecal loading within the right colon. The bowel is not dilated. No signs of pneumoperitoneum.
Thumbprinting sign in a patient with colitis confirmed clinically and with colposcopy. The etiology of the colitis was still uncertain, with differentials including ulcerative colitis or an infective cause.