Listen up! Don't take your ears for granted. Hearing loss is the third most common health problem in the U.S, and it can affect the quality of your life and relationships. About 48 million Americans have lost some hearing. Certain conditions, including age, illness, and genetics, may play a role in hearing loss.
Perilymph fistula has two main causes: 1  The most common causes of a perlymph fistula is trauma to the head or a sudden change in atmospheric presssure, called barotrauma, usually occurring on an airplane or scuba diving. 2  A perilymph fistula has been seen as a side effect of syphilis or Lyme disease.
A salivary fistula can result from injury to any salivary gland, but most commonly the parotid. Fistulas forming from other glands is uncommon. Damage may be due to traumatic wound to the face e.g. bite wound or abscess drainage. Exopthalmus is the most likely cause of zygomatic fistula. The continuous flow of saliva due to trauma to the face prevents healing and therefore a fistula develops.