Benign ear cyst or tumorOsteomas; Exostoses; Tumor - ear; Cysts - ear; Ear cysts; Ear tumors; Bony tumor of the ear canal
Benign ear cysts are lumps or growths in the ear. They are benign.
A sebaceous cyst is a closed sac under the skin filled with a cheese-like or oily material.
A cyst is a closed pocket or pouch of tissue. It can be filled with air, fluid, pus, or other material.
Places they are likely to be found include:
- Behind the ear
- In the ear canal
- In the earlobe
- On the scalp
The exact cause of the problem is unknown. Cysts may occur when oils are produced in a skin gland faster than they can be released from the gland. They can also occur if the oil gland opening has become blocked and a cyst forms under the skin.
Benign bony tumors of the ear canal (exostoses and osteomas) are caused by excess growth of bone. Repeated exposure to cold water may increase the risk of benign bony tumors of the ear canal.
"Benign" refers to a condition, tumor, or growth that is not cancerous. This means that it does not spread to other parts of the body. It does not ...
The symptoms of cysts include:
- Pain (if cysts are in the outside ear canal or if they get infected)
- Small soft skin lumps on, behind, or in front of the ear
The symptoms of benign tumors include:
Note: There may be no symptoms.
Exams and Tests
Benign cysts and tumors are most often found during a routine ear exam. This type of exam may include hearing tests (audiometry) and middle ear testing (tympanometry). When looking into the ear, the health care provider may see cysts or benign tumors in the ear canal.
An audiometry exam tests your ability to hear sounds. Sounds vary, based on their loudness (intensity) and the speed of sound wave vibrations (tone)...
Tympanometry is a test used to detect problems in the middle ear.
Sometimes, a CT scan is needed.
A computed tomography (CT) scan is an imaging method that uses x-rays to create pictures of cross-sections of the body. Related tests include:Abdomin...
This disease may also affect the results of the following tests:
Treatment is not needed if the cyst does not cause pain or affect hearing.
If a cyst becomes painful, it may be infected. Treatment may include antibiotics or removal of the cyst.
Benign bony tumors may increase in size over time. Surgery may be needed if a benign tumor is painful, interferes with hearing, or leads to frequent ear infections.
Benign ear cysts and tumors are slow-growing. They may sometimes shrink or may disappear on their own.
Complications may include:
- Hearing loss, if the tumor is large
- Infection of the cyst
- Infection of the ear canal
- Wax trapped in the ear canal
When to Contact a Medical Professional
Call your provider if you have:
- Symptoms of a benign ear cyst or tumor
- Discomfort, pain, or hearing loss
Nicolai P, Castelnuovo P. Benign tumors of the sinonasal tract. In: Flint PW, Haughey BH, Lund V, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 6th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 48.
O'Handley JG, Tobin EJ, Shah AR. Otorhinolaryngology. In: Rakel RE, Rakel DP, eds. Textbook of Family Medicine. 9th ed. Philadelphia, PA: Elsevier; 2016:chap 18.
Warren FM, Shelton C, Hamilton BE, Wiggins RH. Neuroradiology of the temporal bone and skull base. In: Flint PW, Haughey BH, Lund V, et al, eds. Cummings Otolaryngology: Head & Neck Surgery. 6th ed. Philadelphia, PA: Elsevier Saunders; 2015:chap 135.
Ear anatomy - illustration
The ear consists of external, middle, and inner structures. The eardrum and the 3 tiny bones conduct sound from the eardrum to the cochlea.
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Review Date: 5/25/2016
Reviewed By: Sumana Jothi, MD, specialist in laryngology, Assistant Clinical Professor, UCSF Otolaryngology, NCHCS VA, SFVA, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.