title: Tumor cell nuclear diameter and CD30 expression as potential prognostic parameter in patients with extranodal NK/T-cell lymphoma, nasal type.
abstract: Extranodal natural killer/T-cell lymphoma, nasal type (nasal ENKTL) is a distinct clinicopathologic entity of lymphoid tumors with variable size and differentiation of tumor cells. Nasal ENKTL is related to infection of the tumor cells with Epstein-Barr virus (EBV) and virtually all cases contain monoclonal episomal EBV DNA and detectable EBV encoded small nuclear RNAs (EBERs). Several clinical factors are known for their relation to the prognosis, but histopathologic prognostic factors of nasal ENKTL have not yet been well established. We evaluated the prognostic value of the longest nuclear diameter of EBER+ tumor cells (NDTC) along with the result of CD30 expression. Twenty two patients with newly diagnosed nasal ENKTL were evaluated regarding clinicopathologic characteristics. NDTC was measured using a computerized image analysis system. The results were expressed as the mean diameter of ≥ 50 cells in a patient. Median of the mean NDTC of the patients was 7.32 μm (5.15-11.27). Patients with larger mean NDTC (≥ 7.35 μm) had a poorer event-free survival (EFS) than those with smaller mean NDTC (<7.35 μm; p = 0.024) and had a tendency of inferior overall survival (OS) (p = 0.08). Patients with CD30 expression had a inferior EFS (p = 0.018) and OS (p = 0.011) compared those without CD30 expression. The NDTC of EBV infected tumor cell and CD30 expression had relation to survival in the current exploratory analysis.
authors.affiliation: Department of Internal Medicine, Gachon University School of Medicine, Incheon, Korea.
authors.forename: Junshik
authors.initials: J
authors.lastname: Hong
authors.forename: Sanghui
authors.initials: S
authors.lastname: Park
authors.forename: Hae Lim
authors.initials: HL
authors.lastname: Baek
authors.forename: Joo Hyun
authors.initials: JH
authors.lastname: Jung
authors.forename: Il Gyu
authors.initials: IG
authors.lastname: Kang
authors.forename: Sun Jin
authors.initials: SJ
authors.lastname: Sym
authors.forename: Jinny
authors.initials: J
authors.lastname: Park
authors.forename: Jeong Yeal
authors.initials: JY
authors.lastname: Ahn
authors.forename: Eun Kyung
authors.initials: EK
authors.lastname: Cho
authors.forename: Seon Tae
authors.initials: ST
authors.lastname: Kim
authors.forename: Dong Bok
authors.initials: DB
authors.lastname: Shin
authors.forename: Jae Hoon
authors.initials: JH
authors.lastname: Lee
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000032:analysis*; D001706:Biopsy; D053145:Cell Nucleus Size; D004279:DNA, Viral / Q000032:analysis; D018572:Disease-Free Survival; D005260:Female; D004854:Herpesvirus 4, Human / Q000235:genetics; D006801:Humans; D007150:Immunohistochemistry; D017403:In Situ Hybridization; D053208:Kaplan-Meier Estimate; D017730:Ki-1 Antigen / Q000032:analysis*; D054391:Lymphoma, Extranodal NK-T-Cell / Q000276:immunology* / Q000401:mortality / Q000473:pathology* / Q000628:therapy / Q000821:virology; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D014408:Biomarkers, Tumor; D004279:DNA, Viral; D017730:Ki-1 Antigen
keywords: CD30; Extranodal NK/T-cell lymphoma; epstein-barr virus; nasal type; nuclear diameter; prognosis