Prostate hyperplasia in St Mary’s Hospital Lacor: utility of prostate specific antigen in screening for prostate malignancy

Abstract

Introduction: Prostate cancer is the second commonest cancer in men worldwide. At present, every patient with lower urinary tract symptoms (LUTS) in St. Mary’s Hospital Lacor is undergoing prostate biopsy regardless of the prostate specific antigen (PSA) level. We sought to determine the association between PSA and malignant prostate histology. Methods: This was a retrospective study. Data on age, PSA, prostate volume and prostate histology reported between Jan 2012 and Dec 2019 were retrieved from St. Mary’s Hospital Lacor archive and analyzed using STATA SE/13.0. Results: Records of 97 patients with LUTS was analyzed. The median (range) age of the patients was 71 (43-100) years. Median (range) of prostate volume was 91.8 (8.0-360.0) cc. Overall, PSA ranged from 0.21 to 399.2 ng/ml. Prostate histology showed 3.1% acinar adenocarcinoma, 24.7% adenocarcinoma and 72.2% benign prostatic hyperplasia. The median PSA amongst pa- tients with malignant and non-malignant prostates were 15.8 ng/ml and 6.07 ng/ml respectively. Serum PSA level was signifi- cantly higher in patients with malignant prostate histology (Difference of mean= 9.7; p=0.001). Conclusion: Patients with LUTS and PSA levels of 15ng/ml or more were more likely to have malignant prostate histology. Keywords: Prostate specific antigen; Prostate cancer.