Procalcitonin Levels in Chronic Rhinosinusitis.

Procalcitonin, which is an important inflammatory marker especially in sepsis and systemic inflammation, was significantly elevated in CRSwNP patients compared to CRSsNP patients and healthy controls. This may support the presence of chronic mucosal inflammation in CRSwNP patients. However, procalcitonin is an indirect marker of inflammation and further studies with larger patient groups are warranted.