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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Suggest treatment for lump on armpit

For many years I have had a bump between my left armpit and left peck. When squeezed a white smelly discharge comes out. Its about the circumference of a pea, its dark and flat, the lump is under the skin and whenever I feel the lump I squeeze out the substance which has recently become dark in color. This never goes away. What is it?
Mon, 16 Feb 2015
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Pain Medicine & Palliative Care Specialist 's  Response
This is a sebaceous cyst that has become infected. This is not serious and is easily treated. I suggest you see your doctor for antibiotics initially. As you have suffered with this for some time, it may be advisable to have it surgeiccal removed. This is a minor operation.
I hope this is of help to you.
Dr K A Pottinger
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Pathologist and Microbiologist Dr. S. Samanta's  Response
Hi, happy to help you on your health concern on part of HCM!

In the present case of arm pit swelling or lump, if I were your consulting physician, I would just think of only one and one possibility and that is a sebaceous cyst or epidermal inclusion cyst!

As per your description, it is a benign harmless lesion and never turns malignant but dark discoloration might be there due to silent recurrent bleeding within its cavity! Anyways, surgical removal is the definitive cure for these!

In any case this could not be cancer...

Take caution not to get injured there as this might invite infection.

If you are still worried, please get examined by a surgeon or get some FNAC like cytological examination or revert back to us.

Hope you got your answer. Please feel free to write to us if any more queries.

Wishing you the best health!
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