OS analysis of Tγδ LGLL patients. (A) OS analysis of the Tγδ LGLL cohort with respect to presence/absence of splenomegaly. Survival curves were estimated using the Kaplan-Meier method and compared by log-rank test. (B) OS comparison between Tαβ and Tγδ cohorts. With a median follow-up of 108 months (Tαβ) and of 48 months (Tγδ), median OS was not reached in both the cohorts. Survival curves were estimated using the Kaplan-Meier method and compared by log-rank test.