CD8A and T-cell large granular lymphocyte leukemia: Only few reports have taken into account the peculiar BM appearance of LGLL patients, mostly describing a moderate or marked hypercellularity and an interstitial lymphoid infiltration [51,52,53], with clusters of at least eight CD8+/TIA1+ cells or six granzyme B+ lymphocytes being a common histopathological finding [54].