Benign ear cyst or tumor
Benign ear cysts are lumps or growths in the ear. They are benign.
Osteomas; Exostoses; Tumor - ear; Cysts - ear; Ear cysts; Ear tumors; Bony tumor of the ear canal
Places they are likely to be found include:
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.
The symptoms of cysts include:
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.
Sometimes, a CT scan is needed.
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:
When to Contact a Medical Professional
Call your provider if you have:
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.
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.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.