Methods
From June to October 2020, based on the oncohematological department of the National Research Oncology Center LLP, 19 patients were treated, of which: men - 11, women - 8. The average age of 43 years (+-16). Of these, patients with multiple myeloma-32%; acute myeloid leukemia - 26%; acute promyelocytic leukemia - 11%; acute lymphoblastic leukemia - 26%; chronic lymphocytic leukemia - 5%. Treatment was carried out following the protocols for the diagnosis and treatment of hemoblastosis and concomitant COVID-19 infection (11).