S.S. YASHIN, YU.R. YUNUSOVA, A.D. IBRAGIMOVA, A.D. DUDKO Samara State Medical University, Samara  Contact details: Yashin S.S. — Assistant Lecturer of the Department of General and Clinical Pathology: Pathological Anatomy, Pathological Physiology Address: 89 Chapaevskaya St., Samara, Russian Federation, 443099, tel.: +7-927-739-42-10, e-mail: s.s.yashin@samsmu.ru  Tumors of the brain constitute only 2% of all primary tumors, […]