E.Z. FATYKHOVA1, S.P. YAKUPOVA1, T.B. SIBGATULLIN2, I.L. SERDYUK3 1Kazan State Medical University, Kazan 2Kazan Federal University, Medical-sanitary Unit 3Republican Clinical Hospital of the MH of RT, Kazan  Contact: Fatykhova E.Z. ― resident doctor–rheumatologist of the Department of Hospital Therapy Address: 49 Butlerov Str., Kazan, Russian Federation, 420012, tel. (843) 237-36-18, e-mail: [email protected] Retroperitoneal fibrosis (RPF) […]