Nodular hyperplasia of prostatic glands and the fibromuscular stroma. Glands exhibit focal cystic change with epithelial infoldings. The normal lobular pattern is preserved and cytologic features are unremarkable. Stroma shows marked infiltration by neutrophils, lymphocytes and plasma cells amounting at multiple microabcsesses formation. No evidence of specific granulomas. No evidence of malignancy.
Long history of lower urinary tract symptoms, with a suspected diagnosis of benign prostatic hyperplasia or prostate cancer.
Tissue cores up to 1.8 cm long.
Prostatic gland, TRUS guided core biopsies: