PMC5192012_01
Timeline.
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August of 2003 (Fig. 1), following the onset of constipation, a colonoscopy showed a stenotic cancer of the sigmoid. An abdominal Computed Tomography (CT) showed a hepatic metastases on the V segment with a maximum diameter of 6.5 cm.
Positive CK20 in intestinal-type glands (20x).
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Cytokeratin 20 positivity, expressed by the epithelium of gastrointestinal type (Fig. 2), and Cytokeratin 7 negativity (Fig. 3), shown instead by serous and mucinous carcinoma of ovarian origin, confirmed the diagnosis of the localization in the ovaries of colon adenocarcinoma.