Knee pain: The white mass could be anything, especially with arthritis. Most commonly they may be osteophytes, subchondral cyst, cartilage or bony loose body, or calcium deposition. Less commonly they could be something rare such as tumor, heterotopic ossification, etc. It is hard to know exactly what it is without looking, but may be a good idea to have it checked out by a doctor and consider other imaging.
Answered 2/24/2019
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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