On the principle of cancer vigilance in hygiene

Abstract

Defining the content of the concept of "malignant tumor", the founder of Soviet oncology NN Petrov (1959) wrote that this is "... a dystrophic proliferative reaction of the body to various harmful external and internal factors that persistently disrupted the composition and structure of tissues and cells and changed them exchange". In this definition, in essence, the basic principles of combating cancer incidence are laid.