A common cause of acquired hydroceles is impaired lymphatic drainage. This can occur secondary to many diseases, such as lymphatic filariasis in which damage to the lymphatic system results in an inability to reabsorb fluid from the tunica vaginalis. It can also be seen post-operatively or related to malignancy or infection.
Patients with hydrocele will present with a large scrotum, which can be transilluminated with a flashlight. This means that the mass can be seen when light is shined on the scrotum.
Though there is enlargement of the scrotum, the mass is painless. A chronic, dull ache in the scrotal area may occur if the mass becomes too large.
Hydroceles can be aspirated through the scrotal skin, but this procedure is not done if there is suspicion of a tumor (may spread malignancy). If patients have recurring hydroceles or if they are children, surgical removal of the hydrocele is preferred. In infants, however, surgery can often be delayed as most congenital hydroceles resolve spontaneously before two years of age.
Patients require scrotal support after treatment, and it is important to promote drainage and comfort following needle aspiration or surgery.
Occasionally, severe infection can be introduced to the scrotum after aspiration. Acute hemorrhage into the tunica vaginalis may also occur, so you should be aware of recurring scrotal swelling and tenderness.
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