Hydrocele
Basics
Basics
Basics
Description
Description
- Most common cause of painless scrotal swelling
- Classified as congenital or acquired (secondary):
- Congenital result from a patent process vaginalis and communication between tunica vaginalis and peritoneal cavity:
- Normally occurs spontaneously and most are closed by 2 yr of age
- Acquired occur secondary to interscrotal infection, neoplasm, inguinal or scrotal surgery, or regional or systemic disease
- Communicating hydrocele:
- Patent processus vaginalis
- Scrotum fills and empties with peritoneal fluid depending on body position and intraperitoneal pressures
- Noncommunicating hydrocele:
- Due to production of serous fluid by a disease process or impaired absorption within the scrotum itself
Etiology
Etiology
- Imbalance between production and resorption of fluid within the space between tunica vaginalis and tunica albuginea
- Disease processes causing adult noncommunicating hydrocele include:
- Epididymitis
- Hypoalbuminemia
- TB
- Trauma
- Mumps
- Spermatic vein ligation
- In developing world, hydrocele is primarily caused by infections such as Wuchereria bancrofti or Loa Loa (filariasis is the cause of most hydroceles worldwide)
- Rarely malignancy (first-degree testicular neoplasm or lymphoma)
- Rare etiology is the abdominoscrotal hydrocele that may cause hydroureter or unilateral limb edema owing to compression:
- US reveals single sac extending from scrotum into abdominal cavity via the deep inguinal ring
Pediatric Considerations
- Congenital in 6% of newborn boys
- Usually diagnosed in newborn nursery
- Caused by patent processus vaginalis, a structure that remains patent in 85% of newborns
- May vary in size owing to position or crying:
- Patients may present with history of scrotal mass that has resolved
- Most close by the age of 2 yr
There's more to see -- the rest of this topic is available only to subscribers.
© 2000–2025 Unbound Medicine, Inc. All rights reserved