E-cadherin and Cytokeratin Subtype Profiling in Effusion Cytology.
10.3346/jkms.2004.19.6.826
- Author:
Joungho HAN
1
;
Mi Kyung KIM
;
Seok Jin NAM
;
Jung Hyun YANG
Author Information
1. Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
- Publication Type:Original Article ; Comparative Study
- Keywords:
Pleural Effusion;
Ascites;
Carcinoma;
Mesothelioma;
Neoplasms, Mesothelial;
Cadherins;
Keratin;
Cytokeratin 20;
Keratin 7
- MeSH:
Cadherins/*metabolism;
Carcinoma/diagnosis/*metabolism/*secondary;
Comparative Study;
Diagnosis, Differential;
Epithelium/*metabolism/*pathology;
Humans;
Hyperplasia/metabolism;
Immunohistochemistry/methods;
Keratin/*metabolism;
Mesothelioma/diagnosis/*metabolism;
Tumor Markers, Biological/*metabolism
- From:Journal of Korean Medical Science
2004;19(6):826-833
- CountryRepublic of Korea
- Language:English
-
Abstract:
Diagnostic utility of E-cadherin (E-CD) and cytokeratin (CK) subtype profiling in effusion cytology was investigated, employing immunocytochemistry on cellblock sections available from 211 metastatic carcinomas (MC), 6 mesotheliomas and 73 reactive mesothelial hyperplasias (MH). E-CD and monoclonal carcinoembryonic anti-gen (mCEA) stained 85% (120/141) and 65% (138/211) of MC, respectively. E-CD staining of MC was frequently heterogeneous (76/120) and absent in all anaplastic carcinomas (0/2). E-CD stained none (0/57) of MH while mCEA and epithelial membrane antigen (EMA) stained 12% (9/73) and 32% (16/32) of MH, respectively. Of 6 mesotheliomas, E-CD focally stained in 2 while mCEA stained none and EMA stained all. CK20 and CK17 stained none of MH or mesotheliomas. CK20 stained 15% of MC and CK 17 stained 22% of MC. CK5/6 and high molecular weight CK stained all mesotheliomas, 56% and 88% of MH, 26% and 39% of MC, respectively. MC showed predominant CK7+/20-expression, with the exceptions of MC from mucinous type of colon/rectum and ovary showing predominant CK20 positive. E-CD may be a useful positive marker for MC in effusion cytology, although it may focally stain in some mesotheliomas. Any positive staining for CK20 of MC suggests MC from the gastrointestinal tract or ovary among others.
