Fig. 4
From: Identifying the deceiver: the non-neoplastic mimickers of genital system neoplasms
Mumps orchitis. A 32-year-old man referred from infertility clinic for general evaluation and mildly enlarged left testis. US exam demonstrated severely heterogeneous left testis with no evident vascularity within the testis parenchyma. The right testis was completely normal (not shown). Orchiectomy revealed severe and diffuse testicular fibrosis consistent with chronic mumps orchitis