case_images: PMC6369260_01
case_images: Computed tomography (CT).. CT shows a mass in the rectum (A) and ascending colon (B).
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case_images: CA 125 was not observed. Computed tomography (CT) revealed masses in the rectum and ascending colon as well as several regional lymph node enlargements at each lesion (Fig. 1).
case_images: Photomicrographs of rectal (A) and ascending colonic (B) histology (Elastica-Masson staining, 100x).. (A) shows a well-differentiated tubular adenocarcinoma, but (B) shows growth of transitional cells in the mucosa.
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case_images: Histological examination revealed adenocarcinoma of the rectum and TCC of the ascending colon (Fig. 2).
case_images: Immunohistochemical studies of ascending colonic histology [A: CK 7 (400x); B: CK 20 (400x)].. Tumor cells were negative for CK 7 (A) and positive for CK 20 (B).
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case_images: IIIB, while that of the ascending colonic lesion was pT3N2bM0, stage IIIC. Immunohistochemically stained specimens of tumor cells of the ascending colonic lesion were negative for cytokeratin (CK) 7 but positive for CK 20 (Fig. 3).