Smear showing abundance of neutrophils with many cell debris, few lymphocytes and macrophages. No evidence of crystals. No evidence of specific granulomas. No evidence of malignancy.
Known case of Rheumatoid Arthritis presenting with right knee swelling, redness, and heat, raising clinical suspicion of septic arthritis.
One smear was prepared and pap stained from submitted 30 ml creamy-brown fluid.
Right knee FNAC: