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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Small Knot On Shoulder, MRI Shows Signs Of Arthritis

I recently noticed a small knot on my right shoulder that is raising some concern. It does not move and I only feel discomfort when pressed a certain way. My shoulder bones are noticeable which is what made me aware that something is different. It is under the skin with no color or pigment change and is about the size of my index finger round. I have suffered from upper right back and shoulder pains about a year ago. MRI only showed signs of arthritis that may be causing discomfort. Should I have this checked?
Tue, 22 May 2012
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Oncologist,  's  Response
This small knot on your shoulder may be a sebaceous cyst with mild or moderate infection. Many a times it has a small punctum on it and after squeezing it a creamy material gets exuded. You can just forget it but if it is causing concern to visit a gen. Surgeon who will drain it with wide bore needle if the cyst is confirmed, followed by local injection of a sclerosing agent. If it is a knot other than the cyst it needs to be enucleated and submitted for pathological examination.
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Small Knot On Shoulder, MRI Shows Signs Of Arthritis

This small knot on your shoulder may be a sebaceous cyst with mild or moderate infection. Many a times it has a small punctum on it and after squeezing it a creamy material gets exuded. You can just forget it but if it is causing concern to visit a gen. Surgeon who will drain it with wide bore needle if the cyst is confirmed, followed by local injection of a sclerosing agent. If it is a knot other than the cyst it needs to be enucleated and submitted for pathological examination.