Seminal vesicle agenesis is a condition that refers to the congenital absence of one or both seminal vesicles.
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Epidemiology
Seminal vesicle agenesis is a rare finding with a reported incidence of 0.08 % 2.
Associations
Developmental anomalies of the ipsilateral urogenital tract may be observed 2:
- ipsilateral renal agenesis
- ejaculatory duct obstruction
- ectopic ureter
- ductus deferens agenesis
Clinical presentation
This anomaly is usually asymptomatic, but may present with infertility, low‐volume ejaculate, hematuria and perineal pain 2.
Pathology
Unilateral vesicle seminal agenesis is observed when complete failure of the mesonephric duct occurs before the seventh week of gestation 2.
Bilateral vesicle seminal agenesis is usually only seen in cystic fibrosis 2.
Radiographic features
Unilateral or bilateral absence of seminal vesicles, posterior to the prostate.