Clin Exp Rheumatol
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Early differentiation between septic and non-septic arthritis is difficult. A previous study showed promising diagnostic accuracy of serum Procalcitonin (PCT) in septic arthritis, limited by a low sensitive PCT test kit. ⋯ Our data suggest that PCT seems to be a highly sensitive and specific marker for septic arthritis, depending on the clinical setting. Further studies are warranted.