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Table 1 Immunohistochemical staining

From: Primary colon adenocarcinoma with choriocarcinoma differentiation: a case report and review of the literature

  CEA CDX2 hCG CK7 CK20 PLAP
Colon lesion, glandular component +++ +++ +++
Colon lesion, serosal component +++ +++ a a  
Liver lesion +++ +++ +++
  1. aNegative, with weak positivity in isolated cells only
  2. CDX2 caudal type homeobox-2, CEA carcinoembryonic antigen, CK7 cytokeratin 7, CK20 cytokeratin 20, hCG human chorionic gonadotropin, PLAP placental alkaline phosphatase