Pronounced cystic transformation of the rete testis - MRI appearance

BACKGROUND. Cystic transformation of the rete testis is a little-known part ial or complete obstruction of the spermatozoa-containing secretion of the head of the epididymis. Depending on its severity, either ectasia or a cyst ic transformation occurs, which spreads to the network of convoluted semini ferous tubules in the mediastinum testis. Findings in contrast-enhanced MRI examinations are characteristic and may help to differentiate this benign entity from malignant neoplasia. The authors present two pronounced cases i n different stages, documenting the broad spectrum of possible involvement.