The ROC curve illustrated that the AUC of NRP‐1/CD304 for the diagnosis of BPDCN, B‐ALL, and AML was 0.936 (95% CI 0.898–0.973), 0.723 (95% CI 0.646–0.801), and 0.435 (95% CI 0.362–0.509), respectively (Table 2, Figure 2). Here, NRP1 is linked to acute lymphoblastic leukemia.