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View a VC case
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1: axial CT image at lung window setting shows a large polypoid tumor at the splenic flexure of the colon. Colonoscopy could not assess the colon proximal to the lesion.
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2: axial CT image displayed at lung windows setting shows a 1 cm polyp in the descending colon distal to the tumor.
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3: Virtual colonoscopy fly-through reveals both the polyp and the tumor.
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4: endoscopic view of the tumor in the splenic flexure
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5: 3D reconstruction from CT data of the colon simulating double contrast barium enema showing the exact location of the polyp and tumor, prior to surgery
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6: Near the ileo-cecal valve a synchronous tumor was also present and demonstrated by virtual colonoscopy. Secondary to this finding of a second tumor, the patient underwent total colectomy.
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