PMC6378842_01
CT slice through a primary caecal adenocarcinoma. The greatest dimension of the mass was 8 cm. The arrow indicates the cancer extension into the retroperitoneum. Colonoscopic biopsy showed a poorly differentiated cancer.
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A CT was performed in December of 2016 and a single slice through the cancer is shown in Fig. 1.
(Top) CT slice through the mid-abdomen at one year follow-up shows tumor nodules thought to be located in the greater omentum. (Bottom) CT slice through the pelvis shows a 4 cm mass in the rectouterine (cul de sac) space.
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CT showed masses in the omentum and rectouterine space (Fig. 2).
PMC6378842_02
(Top) CT slice through a primary ascending colon adenocarcinoma. The greatest dimension of the mass was 8 cm. The mass touches the visceral surface of the right lobe of the liver and the second portion of the duodenum. (Bottom) CT slice shows stranding of the fat posteriorly suggesting a localized perforation.
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This showed a mass 7 cm in greatest diameter that was immediately adjacent to the undersurface of the right liver and contiguous with numerous loops small bowel and the lowest part of the second portion of the duodenum (Fig. 3).
CT slice 4 months postoperatively through the upper abdomen. At the time of resection of recurrent cancer, tumor was located on the posterior surface of the liver. This anatomic site was a close margin of resection of the primary ascending colon cancer.
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There was marked stranding within the right colon resection site (Fig. 4).