Possibility of frameless biopsy of deep and remote brain tumors and impact of its results on treatment strategy

Purpose: to assess the possibilities of frameless biopsy of brain tumors with deep and hard-to-reach localization and its impact on the treatment strategy. Material and Methods. 56 patients with supratentorial brain tumors of deep and hard-to-reach localization who underwent biopsy using frameless neuronavigation according to accepted standards. Results. In 9 (16.1 %) cases there was a discrepancy between the data of the preliminary MRI examination and the histological conclusion of the punctate after the biopsy, which changed the tactics of treatment. Conclusion. Biopsy of brain tumors of deep and hard-to-reach localization allows you to accurately and least invasive to establish the correct diagnosis. Conducting a frameless biopsy with subsequent immunohistochemical verifcation of the biopsy allows planning adequate further treatment, increasing the duration and quality of life of patients with brain tumors of deep and hard-to-reach localization.