title: [Immunophenotype and differential diagnosis of Hodgkin's lymphoma].
abstract: OBJECTIVE
  To study the immunophenotype and differential diagnosis of Hodgkin's lymphoma (HL).
  
  
  METHODS
  Fifty six cases originally diagnosed as HL were re-evaluated according to lymphoma classification of WHO 2000 on paraffin sections using SP immunohistochemistry.
  
  
  RESULTS
  Among the 56 cases, 47 met the WHO criteria for HL, 8 were NHL and 1 metastatic tumor. Of the 47 HL cases, 2 were nodular lymphocyte predominant HL (NLPHL), 43 classical Hodgkin's lymphoma (CHL) and 2 unclassified HL, and of the 8 cases reclassified as NHL, 6 were T-cell rich B-cell lymphoma (TCRBCL) and 2 anaplastic large cell lymphoma (ALCL). In NLPHL cases, L&H cells were CD(20)(+), CD(15)(-) and CD(30)(-); CD(57)(+) cells and small B-lymphocytes predominated the background infiltration. Diagnostic R-S cells and other tumor cells in 43 cases of CHL were positive for CD(30) (100%), CD(15) (81%) and CD(20) (7%). Six cases of TCRBCL were negative for CD(15) and CD(30). Two cases of ALCL were positive for CD(30), ALK-1 and CD(3), and negative for CD(15) and CD(20). The reactive inflammatory infiltration in CHL and TCRBCL was rich in TIA-1 positive cytotoxic lymphocytes, and CD(57)(+) cells were rarely encountered.
  
  
  CONCLUSIONS
  Combining the immunophenotype of tumor cells and background cells with morphologic criteria are more helpful for classification of HL, and discrimination between NLPHL, CHL and TCRBCL.
authors.affiliation: Department of Pathology, Guangdong Provincial People's Hospital, Guangzhou 510080, China.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Liu
authors.forename: Hengguo
authors.initials: H
authors.lastname: Zhuang
authors.forename: Xinbo
authors.initials: X
authors.lastname: Liao
authors.forename: Xinlan
authors.initials: X
authors.lastname: Luo
authors.forename: Donglan
authors.initials: D
authors.lastname: Luo
authors.forename: Xiuling
authors.initials: X
authors.lastname: Cai
mesh_terms: D015703:Antigens, CD / Q000032:analysis; D003937:Diagnosis, Differential; D006689:Hodgkin Disease / Q000276:immunology / Q000378:metabolism / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D016130:Immunophenotyping; D008565:Membrane Proteins / Q000032:analysis; D018396:Mucin-1 / Q000032:analysis; D039102:Poly(A)-Binding Proteins; D011506:Proteins; D016601:RNA-Binding Proteins / Q000032:analysis; D000074019:T-Cell Intracellular Antigen-1
chemical_list: D015703:Antigens, CD; D008565:Membrane Proteins; D018396:Mucin-1; D039102:Poly(A)-Binding Proteins; D011506:Proteins; D016601:RNA-Binding Proteins; D000074019:T-Cell Intracellular Antigen-1; C071558:TIA1 protein, human