However, there are no literature reports about the expression of NRP‐1/CD304 in other hematological diseases besides BPDCN, AML, and B‐ALL, such as T‐cell acute lymphoblastic leukemia (T‐ALL), B‐cell non‐Hodgkin lymphoma (B‐NHL), T/NK‐cell lymphoma and plasma cell neoplasms. This evidence concerns the gene NRP1 and CD4+/CD56+ hematodermic neoplasm.