title: HepPar1, MOC-31, pCEA, mCEA and CD10 for distinguishing hepatocellular carcinoma vs. metastatic adenocarcinoma in liver fine needle aspirates.
abstract: OBJECTIVE
  To investigate immunohistochemical staining of hepatocyte paraffin-1 (HepPar1), alpha-fetoprotein (AFP), polyclonal carcinoembryonic antigen (pCEA), monoclonal CEA (mCEA), MOC-31 and CD10 for differential diagnosis of hepatocellular carcinoma (HCC) from metastatic adenocarcinoma (MA) on fine needle aspiration biopsy (FNAB).
  
  
  METHODS
  Fifty-one archival, paraffin-embedded FNAB cell blocks, representing 18 HCCs and 33 MAs, were immunostained with antibodies for AFP, CD10, pCEA, mCEA, HepPar1 and MOC-31.
  
  
  RESULTS
  HepPar1, AFP, canalicular pCEA and CD10 were positive in 78% (14 of 18), 28% (5 of 18), 72% (13 of 18) and 35% (6 of 17) of cases of HCC, respectively. The 33 MAs were negative for immunostaining of the above antibodies except for one AFP-positive MA. Ninety-seven percent (31 of 32) of the MAs and 6% (1 of 17) of the HCCs were positive for MOC-31. Monoclonal CEA was immunoreactive on 82% (27 of 33) of the MAs and negative on all the HCCs.
  
  
  CONCLUSIONS
  HepPar1 was the most sensitive marker for HCC, followed by canalicular staining for pCEA. For MA, MOC-31 was the most sensitive marker; mCEA was slightly less sensitive but more specific. We suggest using HepPar1, pCEA, CD10, MOC-31 and mCEA as a panel for distinguishing HCC from MA in liver FNAB.
authors.affiliation: Department of Pathology, Montefiore Medical Center, 111 E. 210th Street, Bronx, New York 10467, USA. luowang@yahoo.com
authors.forename: Luoquan
authors.initials: L
authors.lastname: Wang
authors.forename: Magalis
authors.initials: M
authors.lastname: Vuolo
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Suhrland
authors.forename: Kathie
authors.initials: K
authors.lastname: Schlesinger
mesh_terms: D000230:Adenocarcinoma / Q000276:immunology / Q000556:secondary*; D000951:Antigens, Neoplasm / Q000032:analysis*; D014408:Biomarkers, Tumor / Q000032:analysis*; D044963:Biopsy, Fine-Needle; D002272:Carcinoembryonic Antigen / Q000032:analysis; D006528:Carcinoma, Hepatocellular / Q000276:immunology / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008099:Liver / Q000276:immunology / Q000473:pathology*; D008113:Liver Neoplasms / Q000276:immunology / Q000473:pathology* / Q000556:secondary*; D015260:Neprilysin / Q000032:analysis; D012189:Retrospective Studies
chemical_list: D000951:Antigens, Neoplasm; D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen; D015260:Neprilysin