“…Histologically, BPH is characterized as the overgrowth of stromal and epithelial cells, and it occurs in the transitional zone of prostate 1 . Currently, many BPH studies have focused on risk factors of BPH 12,13,14,15 , while the underlying molecular features of BPH remain understudied 3,9,16,17,18,19 and molecular data is relatively scarce 20,21 . Moreover, BPH has been described as "the most common benign tumor in men", and is commonly referred to as an adenoma, but unlike many malignant 22,23 and benign neoplasms 24,25,26 , it is unknown whether BPH is a neoplastic process 3,7,18,19,20 .…”