153 Tubular Ectasia of the Rete Testes

Clinical Presentation

A 66-year-old man presents with a left scrotal mass on routine physical examination.

Fig. 153.1 (A) Scrotal ultrasound reveals a 1.9 × 1.3 cm cyst within the left epididymal head likely corresponding to the palpable abnormality. Tubular and branching cystic structures are identified within the (B) left and (C) right mediastinum testes.

Radiologic Findings

Scrotal ultrasound reveals a 1.9 × 1.3 cm cyst within the left epididymal head, most likely corresponding to the palpable abnormality. Tubular and branching cystic structures are identified within the left and right mediastinum testes (Fig. 153.1).

Diagnosis

Tubular ectasia of the rete testes. Alternative names are dilatation, cystic dilatation, cystic ectasia, and seminiferous tubular ectasia of the rete testes.