CD4-Negative Variant of Cutaneous Blastic Plasmacytoid Dendritic Cell Neoplasm With a Novel PBRM1 Mutation in an 11-Year-Old Girl.

CD4-Negative Variant of Cutaneous Blastic Plasmacytoid Dendritic Cell Neoplasm With a Novel PBRM1 Mutation in an 11-Year-Old Girl.