Hello docter!!! Plz help me.. My sister is 20. she has sever knee pain. Her ESR Is 57.WBC is 10000. CRP is 0.1. I have also Done MRI of left knee.. Its shows Joint effusion & Suprapatellar effusion with few internal septations... HEr DC test shows-Neutrofil 65%,Eosinphils04%,basophil 00%,Lymphocytes31%,monocytes00%. I am very worried of her.