A hydrocele denotes a pathological accumulation of serous fluid in a body cavity. It can also be noted as a minor malformation of newborns due to high levels of lead in the mother's blood during pregnancy. A hydrocele testis is the accumulation of fluids around a testicle, and is fairly common. It is caused by fluid secreted from a remnant piece of peritoneum wrapped around the testicle, 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...