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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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Article Home Skin Disorders Sebaceous cyst

Sebaceous cyst

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A sebaceous cyst is a lump like lesion. It is a closed sac under the skin filled with a cheese-like or oily material.

Causes

  • Sebaceous cysts most often arise from swollen hair follicles. Skin trauma can also induce a cyst to form. A sac of cells is created into which a protein called keratin is secreted
  • These cysts are usually found on the face, neck, and trunk
  • They are usually slow- growing, painless, freely movable lumps beneath the skin
  • Occasionally, however, a cyst will become inflamed and tender

 

Signs & Symptoms

  • Small, non-painful lump beneath the skin, if it becomes infected, you may have redness, tenderness, or increased temperature of the skin over the area.
  • Grayish-white, cheesy, foul-smelling material may drain from the cyst.


 Treatment

  • Sebaceous cysts are not dangerous and can usually be ignored
  • Placing a warm moist cloth (compress) over the area may help the cyst drain and heal
  • If you have a small inflamed cyst, your doctor may inject it with a steroid medicine that reduces swelling
  • If the cyst becomes swollen, tender, or large, surgical removal may be advised

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