Seminal vesicle hypoplasia

Seminal vesicle hypoplasia is a congenital anomaly that refers to the underdevelopment of one or both seminal vesicles.

Epidemiology

Associations

All mesonephric duct maldevelopments may be observed:

• renal agenesis
• seminal vesicle agenesis
• seminal vesicle cysts
• congenital agenesis of the ductus deferens (CAVD)
• ejaculatory duct obstruction
• ejaculatory duct atresia

Clinical presentation

Patients may present with infertility, azoospermia and low‐volume ejaculate.

Radiographic features

Seminal vesicles hypoplasia has been defined on ultrasound as :

• seminal vesicle width <5 mm
• seminal vesicle length <22.5 mm

Calcifications of the hypoplastic seminal vesicle may be seen.