Tubular ectasia of the rete testis: a potential pitfall in scrotal imaging

Tubular ectasia of the rete testis (TERT) is a benign entity due to dilatio n of the tubules of the rete testis. Most of the time it is discovered inci dentally on scrotal sonograms and may be misinterpreted as malignant. This article outlines the diagnostic criteria of TERT, its possible causes, its incidence and its potential evolution. Recognizing this entity owing to its characteristic clinical, sonographic and, if necessary, MRI features is im portant to avoid unnecessary surgery or biopsies.