PMC4992005_01
Computed tomography image showing an infiltrative mass in the sigmoid colon.
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Examination revealed a soft, non-tender, but distended abdomen, and a computed tomography scan showed an infiltrative mass in the distal sigmoid colon (Fig. 1).
Colonoscopy image showing the near obstructing, circumferential mass in the sigmoid colon.
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The patient was admitted and underwent colonoscopy, which revealed a near obstructing, circumferential, ulcerated mass in the lumen of the sigmoid colon, approximately 20 cm from the anal verge (Fig. 2, Fig. 3).