Distinction between endometrial and endocervical adenocarcinoma: An immunohistochemical study

D. H. Castrillon, K. R. Lee, M. R. Nucci

Research output: Contribution to journalArticlepeer-review

140 Scopus citations


We investigated the possibility of distinguishing between primary endometrial and endocervical adenocarcinomas by using a panel of immunohistochemical stains, which included vimentin (VIM), carcinoembryonic antigen (CEA), epithelial membrane antigen (EMA), and cytokeratins 7 and 20 (CK7 and CK20). Twenty-nine endocervical adenocarcinomas (CCAs) and 30 endometrial adenocarcinomas (EMCAs) including cases with overlapping histologic features (CCAs with endometrioid differentiation [15/29] and EMCAs with mucinous differentiation [16/30]) were evaluated. Most EMCAs (29/30, 97%) were VIM positive, whereas only 2/29 (7%) CCAs were VIM positive. The great majority of EMCAs (28/30) and all 29 CCAs were CK7 positive, whereas all 30 EMCAs and 27/29 CCAs were negative for CK20. CEA positivity was more common in CCAs (18/29, 62%) than in EMCAs (8/30, 27%). EMA positivity was present in all 30 EMCAs and in 26 of 29 (90%) CCAs. We conclude that VIM and CEA are useful immunohistochemical markers in distinguishing EMCAs and CCAs, but CK7, CK20, and EMA are not useful in this distinction.

Original languageEnglish (US)
Pages (from-to)4-10
Number of pages7
JournalInternational Journal of Gynecological Pathology
Issue number1
StatePublished - Jan 1 2002


  • Adenocarcinoma
  • Cytokeratin
  • Endocervix
  • Endometrium
  • Immunohistochemistry
  • Vimentin

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Obstetrics and Gynecology


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