Epidermal Cyst

Definition

An epidermal cyst is a type of slow-growing lump underneath the skin. This cyst contains soft, cheese-like skin contents. These usually appear on the face, neck, chest, upper back, genitals, or behind the ears. Similar cysts called pilar cysts often occur on the scalp.

Causes

Causes include:

  • Blockage of a hair follicle by skin cells—When an injury to the skin occurs, cells from the surface may block hair follicles located deeper within the skin.
  • Damage to a hair follicle due to acne
  • Blockage or defect of the sebaceous gland—This gland is near the hair follicle. It secretes oily material used to lubricate the skin and hair.
Hair Follicle
si1844 96472 1
Copyright © Nucleus Medical Media, Inc.

Risk Factors

Acne and skin injuries increase your risk of developing an epidermal cyst.

Symptoms

If you have any of these symptoms, do not assume it is due to a cyst. These symptoms may be caused by other conditions. Tell your doctor if you have any of these:

  • Small, dome-shaped lump beneath the skin
  • Foul-smelling, cheese-like material draining from the cyst
  • Redness or tenderness on or around the cyst if it becomes inflamed

Diagnosis

You will be asked about your symptoms and medical history. A physical exam will be done. In most cases, the diagnosis can be made by looking at it. You may be referred to a dermatologist. This is a doctor who specializes in skin disorders.

Treatment

Talk with your doctor about the best treatment plan for you. Treatment options include the following:

  • Surgical excision—The doctor removes the entire cyst, including its contents and cyst wall.
  • Surgical drainage—This involves cutting open the cyst, and draining the contents. The cyst might come back, though.
  • Antibiotics—These may be prescribed if the cyst has become in infected.

Prevention

There is no way to prevent an epidermal cyst. If any of the cyst wall is left behind after drainage, the cyst may come back. If this happens, your doctor may decide to remove the cyst using surgery.

Revisions

All EBSCO Publishing proprietary, consumer health and medical information found on this site is accredited by URAC. URAC's Health Web Site Accreditation Program requires compliance with 53 rigorous standards of quality and accountability, verified by independent audits. To send comments or feedback to our Editorial Team regarding the content please email us at HLEditorialTeam@ebscohost.com.

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

Editorial Policy | Privacy Policy | Terms and Conditions | Support
Copyright © 2008 EBSCO Publishing. All rights reserved.

The best chance of surviving a heart attack is to act quickly. Do not wait for symptoms to go away. Call 9-1-1 immediately, and chew an aspirin while waiting for the ambulance to arrive.