Fig. 5

PATHOLOGY: paratesticular IMT. A 34-year-old man with no relevant medical history came to our hospital with a lump in the scrotum. a US showed an isoechoic, solid, paratesticular nodule with fine calcifications (yellow arrow). It did not seem to infiltrate the adjacent testicle. b Axial reformation of contrast-enhanced CT on portal phase demonstrated a well-delimited, heterogeneous, little-enhancing mass in the right scrotum. c Surgical sample obtained after orchiectomy. d Microscopic study of the lesion demonstrated a well-delimited lesion constituted of fibroblasts, lymphocytes and plasmatic cells with associated lymphoid follicle. There was no evidence of adjacent testicle invasion