Abstract
The article provides up-to-date information on the first clinical symptoms of brain tumors in children and considers the term «pre-diagnostic symptomatic interval» of pediatric medulloblastoma, which is widely used in foreign pediatric and neuro-oncological practice. The authors publish the results of their own retrospective population study revealing the clinical and epidemiological characteristics of the most frequently detected malignant brain tumors in children — medulloblastomas in the pediatric population of the Republic of Tatarstan. The analysis of the pre-diagnostic symptomatic interval of this pathology was carried out through the prism of the LOWorPAY scheme, recommended by neurooncologists as a guide for early detection of tumors for primary care physicians. A probabilistic model of the clinical symptom complex is proposed, which determines the risk of neoplasm of the central nervous system in children. Its use will help increase the oncological alertness of doctors and systematize the tactics of detecting brain and spinal cord tumors in children on an outpatient basis.
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