A.V. KOSTERINA Kazan State Medical University, 49 Butlerov Str., Kazan, Russian Federation, 420012  Коsterina A.V. ― Assistant of the Department of Hospital Therapy, tel. +7-917-273-77-68, e-mail: avakost@mail.ru This article gives an overview of laboratory methods applied for the differential diagnosis of monoclonal and polyclonal gammopathies. The definition of monoclonal gammopathies is given. In this article […]