Fig. 2
From: Identifying the deceiver: the non-neoplastic mimickers of genital system neoplasms
Prostatic involvement by granulomatosis with polyangiitis. A 31-year-old man with no known systemic disease presented with severe dysuria and hematuria. Serum PSA levels were also increased. Axial T2-weighted MR image a of the prostate demonstrates heterogeneous ill-defined, mostly hypointense lesion (arrowheads) in the prostate apex. A small cystic cavity appears in the central part of the lesion (asterisk). Axial ADC map (b = 800 s/mm2; 1.5 T) b shows diffusion restriction in the peripheral part of the lesion, suggestive of increased cellularity (arrowheads). Fusion guided transrectal biopsy revealed granulomatous prostatitis consistent with granulomatosis with polyangiitis