No ideas, but I have exactly the same thing on my knee. It just appeared a couple of days ago.
I am 65 and I have exactly the same symptom. A tiny hard knot under the skin on top of my kneecap that I can push all around on the kneecap. Very strange. Does anyone have any ideas?
I thought a keratosis was a skin lesion? This is under the skin. It is floating around in the space between/under the skin but before the patella. Plus this is a 8 year old child so do you still think a rheumatoid disease?
Hello
It is likely that you might be having a keratosis or a rheumatoid disease around the knee joint. It is unlikely that it is a piece of chipped bone. It would apparently feel and look like so because of the paucity for something extra to grow in the knee joint space.
You need to take some anti inflammatory and analgesic agent like ibuprofen..
Best