CD4 and syringocystadenoma papilliferum: The AUC of IL‐6 +CD4+ T cells, IL‐6 + PCT, CD4+ T cells +PCT, IL‐6 + CD4+ T cells +PCT were 0.713 (95% CI 0.62–0.805, p = .000), 0.732 (95% CI 0.641–0.822, p = .000), 0.771 (95% CI 0.683–0.859, p = .000), and 0.787 (95% CI 0.7–0.873, p = .000) respectively in predicting SCAP.