The state of cancer care in Russia: malignant tumors of the skin (C44). Prevalence, index of accuracy, localization and histological structure. Population-based research at the federal district level

Abstract

Malignant tumors of the skin — visual localization, with a low mortality rate. Despite the fact that malignant tumors of the skin (C44) belong to the group of malignant tumors in many countries, cancer registries did not keep its records, the same attitude to this tumor was developed by doctors, which makes it difficult to conduct comparative studies between countries. When selecting data for the analysis of the prevalence of malignant tumors of the skin, in addition to the heading C44, a part of the heading ICD-10 — C46 — Kaposi's sarcoma — its part C46.0 — Kaposi's sarcoma of the skin is added. In many cases, it is not taken into account, due to its extremely rare occurrence, which does not have any practical impact on all the main analytical indicators. The purpose of this study is: for the first time in Russia, to consider not only the patterns of the prevalence of malignant tumors of the skin, but also to study the specifics of the localization and histological structure of this tumor localization, based on the newly created database of the population cancer Registry (PCR) of the North-Western Federal District of the Russian Federation (NWFD of the Russian Federation).