label: CD4+/CD56+ hematodermic neoplasm
label_lc: cd4+/cd56+ hematodermic neoplasm
description: An aggressive immature hematologic neoplasm formerly known as blastic NK cell lymphoma, composed of cells with a lymphoblast-like morphology. Recent evidence suggests derivation from a plasmacytoid monocyte. Patients present with cutaneous tumors and bone marrow involvement.