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A member asked:
I have pea size lump on my outer arm toward shoulder i had an ultrasound and showed just muscle mass. what could it be?
A doctor has provided 1 answer
Fibrous lump: Muscles are lined by fascia which is fibrous - this can get lumps and bumps in it. It doesn't sound like there is anything to be concerned about. Could be some scar tissue from a previous mild injury to the area.
Answered 7/9/2014
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