Table 3 Paraneoplastic knee monoarthritis: synovial fluid analysis results in five patients.

	Patient 1	Patient 2	Patient 3	Patient 4	Patient 5
Volume (ml)	25	20	15	20	30
Viscosity	High	High	High	High	High
Colour	Colourless	Straw	Straw	Colourless	Straw
Clarity	Transparent	Transparent	Transparent	Transparent	Transparent
WBC/mm3	200	600	500	800	700
PMN (%)	40	35	45	30	30
Mucin clot	Firm	Firm	Firm	Firm	Firm
Protein (g/dl)	2.0	1.2	1.8	2.1	1.6
Crystals	Absent	Absent	Absent	Absent	Absent
Culture	Negative	Negative	Negative	Negative	Negative
Cytology	Negative	Negative	Negative	Negative	Negative

PMN, Polymorphonucleates; WBCs, white blood cells.