Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5736410.17816/kazmj57364Research ArticlePreparation and use of saponin for blood tests for cancer cellsStarostinA. P.info@eco-vector.comDepartment of Surgery and Oncology at Kazan State Pedagogical University named after V.I. Lenin on the basis of the 5th city hospital1611196445687880401202104012021Copyright © 2021, Starostin A.P.2021<p id="tw-target-text" class="tw-data-text tw-text-large XcVN5d tw-ta" dir="ltr" data-placeholder="Перевод"><span lang="en">A blood test for tumor cells in patients with malignant neoplasms is of certain importance for clarifying the diagnosis, assessing the effectiveness of various methods of treatment, and the radical nature of the operation. Theoretical questions are also of interest - the fate of tumor complexes and individual cells rejected from the tumor, their viability, and the ways of their spread.</span></p>Kazan Medical archiveКазанский медицинский архив