title: [The immunophenotypic features of primary nasal non-Hodgkin's lymphomas and its association with Epstin-Barr virus].
abstract: OBJECTIVE
  To study the immunophenotypic features of primary nasal non-Hodgkin's lymphoma (NHL) and its association with Epstin-Barr virus (EBV) infection.
  
  
  METHODS
  Twenty-nine cases of nasal non-Hodgkin's lymphoma were studied. CD45RO, CD3epsilon, CD56, CD20, TIA-1 and granzyme B were detected by immunohistochemistry staining for investigate immunophenotype. The expression of EBV-latent membrane protein (LMP-1) were detected by immunohistochemistry. EBV-encoded RNA (EBER1/2) were detected by in situ hybridization (ISH).
  
  
  RESULTS
  Among the 29 cases, CD45RO was positive in all the 29 cases (100. 00%), CD3epsilon and TIA-1 and granzyme B were positive in 19 cases (65.52%), CD56 was positive in 17 cases (58.62%), while CD20 negative in all the 29 cases (100.00%). The positive expression rates of EBER1/2 and LMP-1 were 79.31% and 48.28%. The positive expression rates of EBER1/2 and LMP-1 were not significantly different between peripheral T cell lymphomas and NK/T cell lymphomas( P > 0.05).
  
  
  CONCLUSIONS
  Most nasal NHL cases are NK/T cell lymphomas. Nasal NHL is strong associated with EBV infection, but EBV infection is not associated with immunophenotype. EBV infection may play a role in the pathogenesis of the nasal non-Hodgkin's lymphoma.
authors.affiliation: Department of Pediatrics, Taihe Hospital, Yunyang Medical College, Shiyan 442000, China. mingmeng1992@yahoo.com.cn
authors.forename: Meng
authors.initials: M
authors.lastname: Ming
authors.forename: Dabin
authors.initials: D
authors.lastname: Wang
authors.forename: Xingchen
authors.initials: X
authors.lastname: Ming
authors.forename: Guoyi
authors.initials: G
authors.lastname: Li
authors.forename: Jianhua
authors.initials: J
authors.lastname: Yi
authors.forename: Junxia
authors.initials: J
authors.lastname: Yao
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D020031:Epstein-Barr Virus Infections; D005260:Female; D004854:Herpesvirus 4, Human; D006801:Humans; D016130:Immunophenotyping; D017493:Leukocyte Common Antigens; D008228:Lymphoma, Non-Hodgkin / Q000276:immunology* / Q000821:virology*; D008297:Male; D008875:Middle Aged; D009669:Nose Neoplasms / Q000276:immunology* / Q000821:virology*
chemical_list: D017493:Leukocyte Common Antigens