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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Is The Lump Inside Of My Knee?

I have a lump that has appeared on the inside of my knee overnight. It is the same colour as my natural skin and the size of half a golfball. it isn t sore but uncomfortable when I use my knee. It is hard and feel like bone but I know obviously that this is not what it is. Are you able to help?
Mon, 23 Mar 2015
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Pathologist and Microbiologist 's  Response
Hi! thanks for your query on HCM!

After going through your problem of the lump inside your knee, I must consider following possibilities as per ultrasound/needle biopsy reports in my clinic:

1. a bursa or degenerative benign cystic lesion: 50% possibility

2. a ganglion or benign myxoid cyst 20% possibility

3. acute synovial collection or effusion due to arthritis or irritation: 20% possibility

4. recent hematoma or some benign cyst 9% possibility

5. malignancy 1% possibility

Therefore, it should be investigated properly and you must not neglect but get it to some doctor for imaging and needle biopsy if needed to relieve your concerns!

regards,
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What Is The Lump Inside Of My Knee?

Hi! thanks for your query on HCM! After going through your problem of the lump inside your knee, I must consider following possibilities as per ultrasound/needle biopsy reports in my clinic: 1. a bursa or degenerative benign cystic lesion: 50% possibility 2. a ganglion or benign myxoid cyst 20% possibility 3. acute synovial collection or effusion due to arthritis or irritation: 20% possibility 4. recent hematoma or some benign cyst 9% possibility 5. malignancy 1% possibility Therefore, it should be investigated properly and you must not neglect but get it to some doctor for imaging and needle biopsy if needed to relieve your concerns! regards,