Above the patella (kneecap), denoting especially a bursa. From Stedman's Medical Dictionary
It is a fluid build up on top of the knee cap
Fluid build up above the knee cap
medial joint space narrowing bilaterally (sounds like arthritic/age-realted change in both knees) with enthesopathic change anteriorly on the patella bilaterally at the insertion of the quadriceps tendons (unhealthy tendon changes) suprapatellar effusion (swelling above the kneecaps, probably nothing you haven't noticed already)
Thank you very much. I am 21 years old, not really a jumper or athlete type girl. The pain is basically on that lump only. And its becoming whitish from its centre. Not exact white but comparatively whiter.