A hydrocele denotes a pathological accumulation of serous fluid in a bodily cavity. A hydrocele testis is the accumulation of fluids around a testicle, and is fairly common. A hydrocele testis is due to fluid secreted from a remnant piece of peritoneum wrapped around the testis, called the tunica vaginalis. It can be the result of cancer, trauma (such as a hernia), or orchitis, and can also occur in infants undergoing peritoneal dialysis. It may be treated surgically. Hydroceles are usually not… (More on Hydrocele)