title: Autologous stem cell transplantation for diffuse large B-cell lymphoma with residual extranodal involvement.
abstract: OBJECTIVE
  Diffuse large B-cell lymphoma (DLBCL) in Koreans is frequently accompanied by extranodal (EN) disease at the time of autologous stem cell transplantation (ASCT). We sought to determine whether high EN involvement affected survival following ASCT in Koreans.
  
  
  METHODS
  We reviewed 27 patients who had DLBCL with residual disease at ASCT: 13 with residual disease at nodal site(s) only and 14 with nodal and EN disease.
  
  
  RESULTS
  Univariate analysis showed that disease status, lactate dehydrogenase (LDH), and performance status at ASCT were predictors of survival following ASCT. The number of EN sites, as categorized by the International Prognostic Index system, had no prognostic significance. When EN involvement at ASCT was classified as negative or positive, the 2-year overall survival for the negative group was 64%, significantly better than the 14% for the positive group (p=0.021), and the event-free survival for the negative group was 62%, significantly better than the 14% for the positive group (p=0.02).
  
  
  CONCLUSIONS
  Patients who had DLBCL with residual EN involvement at ASCT showed worse outcomes following ASCT compared to those without EN disease.
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Ock Bae
authors.initials: OB
authors.lastname: Ko
authors.forename: Geundoo
authors.initials: G
authors.lastname: Jang
authors.forename: Shin
authors.initials: S
authors.lastname: Kim
authors.forename: Jooryung
authors.initials: J
authors.lastname: Huh
authors.forename: Cheolwon
authors.initials: C
authors.lastname: Suh
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015331:Cohort Studies; D005260:Female; D006801:Humans; D007723:Korea; D016403:Lymphoma, Large B-Cell, Diffuse / Q000401:mortality / Q000473:pathology* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D018365:Neoplasm, Residual; D012189:Retrospective Studies; D033581:Stem Cell Transplantation; D015996:Survival Rate; D016896:Treatment Outcome; D055815:Young Adult