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‹ Wed · 27 May 2026
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Optimized PET/CT response assessment for prognostic stratification compared with Lugano criteria in extranodal NK/T-Cell lymphoma

Refined PET imaging criteria better predict which lymphoma patients will relapse, enabling early treatment adjustments to improve outcomes.

A multicenter retrospective study of 259 ENKTL patients developed and validated novel PET/CT response criteria (IPN) combining interim PET/CT referencing and nasal mucosal uptake as threshold, achieving superior prognostic discrimination (highest C-index for PFS and OS) compared to the widely-used Lugano classification. These criteria enable early identification of high-risk ENKTL patients and could guide treatment intensification or de-escalation decisions.

What the study was

Study design
Retrospective multicenter cohort
Population
Extranodal NK/T-cell lymphoma (ENKTL) patients at Ruijin Hospital and West China Hospital
Sample size
259
Category
Diagnostics
Maturity
Validated
Journal
European Journal of Nuclear Medicine and Molecular Imaging

Why it surfaced

Well-powered multicenter study (n=259) providing validated improvement over Lugano criteria for ENKTL response assessment — a rare aggressive lymphoma needing better prognostic tools; dual-center China collaboration

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