Fig. 1

Granulomatous prostatitis after BCG therapy. A 62-year-old man with a history of bladder cancer treated with cystoscopic surgery and intravesical BCG therapy now presenting with deep pelvic pain and difficulty with urination. Axial T2-weighted image a of the prostate demonstrates a large hypointense lesion (arrowheads) on the right lateral and posterior peripheral zone of the prostatic apex. Axial diffusion-weighted image b (b = 2000s/mm²; 3 T) demonstrates pronounced diffusion restriction (arrowheads) concerning for prostate cancer. Fusion-guided transrectal biopsy confirmed tuberculous prostatitis with no evidence of malignancy