The efficiency of combined positron emission and computer tomography in the diagnostics of primary metastatic lymph nodes of the neck was analyzed. We determined that f this method provided additional information about progression and localization of primary tumors in 80% of patients. At the same time, primary tumor was identified in 27% of the completely examined patients and metastatic lesions in other organs and lymph nodes were detected in 47% of these patients.
The paper discusses mammographic screening effectiveness in different countries. Large-scale epidemiological studies have demonstrated effectiveness of mammographic screening (early stage of diagnostic, less aggressive treatment, better cosmetic results), however benefits are still the subject to debate. The author presents different opinions concerning the real impact of screening and modern treatment methods in breast cancer mortality decrease as a result of screening.