A<unk>  denotes a pathological accumulation of serous fluid in a bodily cavity. 
A<unk>  testis is the accumulation of fluids around a testicle, and is fairly common.  It may be treated surgically. It can occur in infants undergoing peritoneal dialysis.  A<unk>  testis is due to fluid secreted from a remnant piece of peritoneum wrapped around the testis in the tunica vaginalis. It can also be as a result of cancer, trauma (such as a hernia), or orchitis. It can also be the result of a plugged inguinal lymphatic system caused by repeated chronic infection of Wucheria bancrofti or Brugia malayi, two mosquito-borne parasites of Africa and S.E. Asia, respectively. As such the condition would be a part of more diffuse sequelae commonly referred to as elephantiasis.
Hydrocele
Spermatocele
Varicocele
Pneumatocele
Cystocele
Inguinal hernia
Varicoscele
Urinary bladder hernia