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A 18-year-old member asked:

What is this hard, rubber-y lump under my skin? is this a sign of a tumor?

3 doctor answers7 doctors weighed in
Dr. Michio Abe
Internal Medicine 27 years experience
Impossible to say: Without actually examining it and possibly getting a biopsy, it's impossible to say what you have. Based on your description of a rubbery lump under your skin, my guess would be either lipoma or some cyst like epidermal inclusion cyst. Those are benign. But you may have a rare soft tissue sarcoma, which can be dangerous. You should have it checked.
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Dr. James Huang
Family Medicine 23 years experience
Maybe not: There are many causes of "hard, rubber-y lumpy dumpy lump" under the skin. It depends on location and appearance. It could be a lymph node, lipoma (fat collection), hematoma, foreign body, neuroma, scrofula, or other causes. See your physician. They will run tests and may obtain a biopsy to determine what it is. If it is near a tendon, fast growing, and impairs function, surgery is indicated.
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Dr. Travis Kidner
Surgical Oncology 18 years experience
Probably not: Cancer would not be the first thing that i would think of. Most likely this is a cyst or a benign fatty tumor called a lipoma. You should however bring it to the attention of your friendly primary care physician.
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Last updated Feb 19, 2016

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