Epidemiological structure of malignant neoplasms in Primorsky Krai

Abstract

6451 cases of malignant neoplasms were first detected in 2009 in Primorsky Krai. Trachea, bronchi and lungs (13.7%) were most affected. The authors highlight decreasing number of patients with morphologically confirmed diagnosis down to the level of 2007 (76.5%) and increasing number of tumours diagnosed at the stage IV. 1/3 of malignant neoplasms of trachea, bronchi and lungs, colon, ovaries, prostate gland, and oesophagus had been diagnosed untimely. The highest rates of advanced forms of the disease (III and IV stages) were detected in case of oral cavity and pharynx cancer, rectal cancer, breast cancer, thyroid cancer, cervix cancer, and skin melanoma. Correlating indices of one-year lethality rate and neglected cases allowed indicating high frequency of clinical mistakes when estimating dissemination of the tumour process. The very high morbidity rate, number of neglected cases and lethality in case of malignant neoplasms are indicative of the need to improve early diagnostics of the oncological pathology, ensure full counting of oncological patients, analyse all the neglected and post-mortem confirmed cases, schedule prevention examinations using visual methods, cytological and serological screening.