ABSTRACT
Objective@#To assess the clinical value and safety of pelvic MRI combined with transurethral ultrasound (TRUS)-guided transperineal template mapping biopsy (TTMB) in the diagnosis of prostate cancer.@*METHODS@#A total of 164 men underwent MRI plus TRUS-guided TTMB for the diagnosis of prostate cancer from December 2015 to May 2018. The patients averaged 71.2 years of age and, based on the PSA level, were divided into four groups: PSA 100 μg/L (n = 27). All the patients received digital rectal examination, pelvic MRI and TRUS-guided X+12-core TTMB.@*RESULTS@#The procedures of TRUS-guided TTMB were successfully completed in all the patients, with an average number of 14.2 (14－16) cores and mean operation time of 18 (15－28) minutes. Post-biopsy complications included transient hematuria in 4 cases, perineal hematoma in 12 and fever in 1, but no acute urinary retention. Pathological results revealed 95 cases of prostate cancer, 2 cases of ductal epithelial carcinoma, 63 cases of prostatic hyperplasia with benign interstitial inflammation, and 4 cases of atypical prostatic hyperplasia. The positive biopsy rates in the PSA 100 μg/L groups were 25.00%, 42.86%, 73.58% and 100.00% respectively, with statistically significant difference between the PSA 100 μg/L groups (P < 0.01), but not between the PSA <10 μg/L and PSA 10－20 μg/L groups (P = 0.086).@*CONCLUSIONS@#Pelvic MRI combined with TRUS-guided X+12-core TTMB, with the advantages of high accuracy and low rate of complications, is an ideal approach to the diagnosis of prostate cancer.
ABSTRACT
<p><b>OBJECTIVE</b>Prostate cancer (PCa) has the highest incidence among male malignancies in Western industrialized countries and, as a most common malignant disease in urology, its incidence has been increasing in recent years in Chinese men. This study was to investigate the risk loci associated with PCa susceptibility in Han Chinese by analyzing single nucleotide polymorphisms (SNP).</p><p><b>METHODS</b>We collected peripheral blood samples from 1 667 PCa patients and 1 525 healthy men, and detected 40 loci associated with PCa susceptibility by analyzing SNPs using Sequenom technology.</p><p><b>RESULTS</b>Of the 40 known loci, 16 were confirmed to be significantly associated with PCa susceptibility (P < 0.05). The loci 1, 2 and 5 at 8q24, 10q11 and 22q13.2 also contributed to PCa susceptibility in different ethnic groups.</p><p><b>CONCLUSION</b>PCa susceptibility is obviously associated with the risk loci rs1465618, rs721048, rs12621278, rs7679673, rs12653946, rs339331, rs1512268, rs10086908, rs16901979, rs1447295, rs10993994, rs10896449, rs902774, rs9600079, rs11649743 and rs5759167 in Chinese Han population.</p>