MRI Epidermoid cyst

An epidermoid cyst, also known as an epidermal cyst, is a benign (non-cancerous) skin lesion that arises from the epidermis, the outermost layer of the skin. These cysts are commonly found on the face, neck, trunk, and sometimes on the genitalia, but they can occur anywhere on the skin.

Causes:

The precise cause of epidermoid cysts is not entirely understood, but they often arise from a swollen hair follicle or skin trauma. Genetics may also play a role, as these cysts sometimes appear in groups that suggest a hereditary component.

Symptoms:

Epidermoid cysts typically present as small, round bumps under the skin. These cysts may be yellow or flesh-colored and can range in size from a few millimeters to several centimeters in diameter. They grow slowly and are typically not painful. However, symptoms may include:

• A noticeable lump on the skin
• A blackhead at the center of the cyst
• Redness or swelling if inflamed or infected
• Soreness or discomfort if the cyst is located in an area that is frequently irritated
• A cheesy or oily material that can drain from the cyst

Treatment:

Treatment for epidermoid cysts usually depends on whether they are causing discomfort or cosmetic concerns. Options include:

Minor surgery: This is the most definitive treatment and involves removing the entire cyst to prevent recurrence. It’s usually done under local anesthesia

Incision and drainage: This provides temporary relief from symptoms but does not remove the cyst wall, so the cyst may recur.

Injections: Steroid injections can reduce inflammation if the cyst is swollen.

Antibiotics: If an epidermoid cyst becomes infected, antibiotics might be prescribed to clear the infection.