Article
Diagnostic criteria for NK cell large granular lymphocyte leukemia: validation through a multicentric international study.
Blood advances - 10 Feb 2026
Pastoret Cedric, Yang Jun, Feith David J, Roussel Mikaël, Moignet Aline, Dighe Shubha, Solga Micheal Dimitri, Marchand Tony, Visser Garance, Gasparini Vanessa Rebecca, Teramo Antonella, Zambello Renato, Loughran Thomas P, Lamy Thierry
Abstract excerpt
ABSTRACT: Natural killer (NK) large granular lymphocytic leukemia (LGLL) is a rare lymphoproliferative disorder lacking definitive clonality markers, complicating diagnosis and distinction from reactive NK cell expansions. We previously proposed an NK clonality score with high diagnostic accuracy, but a subset of patients remained unclassified. In this multicenter international study, we refined and validated...
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