A Prospective Cohort Study of IRPF in China

This is a cohort study to investigate the disease course and treatment response of patients with idiopathic retroperitoneal fibrosis（IRPF）. Methods: All the patients fulfilling diagnostic criteria of IRPF would be enrolled around China. A online database system will been established. Endpoints: The primary endpoint is to investigate the clinical manifestations of Chinese IRPF patients; the secondary endpoints including the demographic features,laboratory characteristics, immunological tests, imaging and pathological features, in addition, the treatment and prognosis of the disease.