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Published on: March 30, 2018
Clinical features and prognostic model for extranasal NK/T-cell lymphoma
Jae-Cheol Jo1, Dok Hyun Yoon, Shin Kim
1Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
European Journal of Haematology
|May 5, 2012
Summary
Extranasal natural killer (NK)/T-cell lymphoma (ENKL) presents with more severe features and poorer survival than nasal ENKL. Prognostic indices like KPI and IPI can help predict outcomes for extranasal ENKL patients.
Area of Science:
- Oncology
- Hematology
- Clinical Medicine
Background:
- Extranodal natural killer (NK)/T-cell lymphoma (ENKL) clinical features are less understood than nasal ENKL.
- Understanding differences in ENKL presentation and prognosis is crucial for patient care.
Purpose of the Study:
- To compare the clinical characteristics and prognoses of patients with nasal ENKL versus extranasal ENKL.
- To evaluate the utility of prognostic indices in extranasal ENKL.
Main Methods:
- Retrospective analysis of 117 consecutive ENKL patients (89 nasal, 28 extranasal).
- Comparison of clinical features, disease stages, and survival outcomes.
- Application of Korean Prognostic Index (KPI) and International Prognostic Index (IPI) for risk stratification.
Main Results:
- Extranasal ENKL showed more adverse features: B symptoms, advanced stage (III/IV), multiple extranodal sites, and bone marrow involvement.
- Median overall survival was significantly shorter for extranasal ENKL (8.6 months) compared to nasal ENKL (86.5 months).
- Extranasal origin was a significant negative prognostic factor for overall survival; KPI and IPI effectively stratified risk.
Conclusions:
- Patients with extranasal ENKL experience worse clinical outcomes than those with nasal ENKL.
- The KPI and IPI are valuable tools for predicting prognosis in patients with extranasal ENKL.
