Double primary adenocarcinomas of the jejunum and descending colon with lung metastases presenting rare immunohistochemical phenotypes: a case report.

Abstract excerpt

We report a male patient with double advanced tumors in the jejunum and descending colon and multiple lung tumors. The intestinal cancers were surgically resected. Immunoprofiling of the specimens revealed a rare phenotype: the jejunal cancer was positive for cytokeratin (CK) 7, partially positive for CK20, and Cdx-2-negative, whereas the colon cancer was CK7(+), CK20(-), and Cdx-2(-). Biopsied lung tumor was...

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