Abstract
Objective To investigate characteristics of serum prostate specific antigen (PSA) in HGPIN patients and the effect of the number of the first time biopsy high grade prostatic intraepithelial neoplasia (HGPIN) positive needles on the detection rate of secondary biopsy prostate cancer (PCa). Methods A total of 320 patients who underwent prostate biopsy in our hospital from February 2013 to December 2015 were selected. Ultrasound guided prostate biopsy was performed in all patients, and the differences of serum PSA was analyzed, non PCa patients after 6 months of treatment underwent the secondary biopsy. Results All patients for the first time biopsy results showed: 80 patients with HGPIN ( 51 cases of solitary type and 29 cases of multifocal type ), 45 cases of low grade prostatic intraepithelial neoplasia (LGPIN), 128 cases of benign prostatic hyperplasia (BPH), 67 cases of PCa. Serum PSA of patients with PCa was significantly higher than that of BPH, LGPIN, solitary and multifocal HGPIN patients (P 0.05). PCa proportion of secondary biopsy in multifocal HGPIN patients was 38.46%, significantly higher than BPH, LGPIN and solitary HGPIN patients (P 0.05). Conclusions Serum PSA level of multifocal HGPIN patients is higher than solitary HGPIN, BPH and LGPIN, but still lower than PCa. Detection rates of secondary biopsy PCa in multifocal HGPIN patients are significantly higher than other patients. Key words: Prostatic Neoplasms; Prostate-Specific Antigen; Biopsy, Needle
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