This paragraph scares me the most:
" It should be noted that 5α-RIs alter cellular biology with uncertain outcomes. For example, treatment of animals with 5α-RIs resulted in marked increase in the expression of the AR . The implication of such dysfunctional metabolism may contribute to loss of androgen dependence and to acquisition of high-grade tumors. In addition, Yun et al.  postulated that finasteride increases expression of hemoxygenase-1 and other related factors in PCa cell lines (PC-3). The authors suggested that finasteride-induced alteration in gene expression may be in part responsible for finasteride-induced high grade prostate tumors . It is not surprising that Theoret et al.  reported a significantly number of high grade tumors (Fig. 4), with finasteride and dutasteride in the data from the PCPT  and REDUCE trials  respectively, even after using the revised Gleason scoring system .
I’m really worried that I could have cancer. I’ve had an ache on my member on the right side near the base since March (it’s hurting considerably as I type this), other aches in the prostate area, urination issues, they found nodules on my liver during an ultrasound. Man, this is so bad.