[Problems of the early diagnosis of breast cancer].

The results of medical check-ups of 17,000 females are presented. Stage I cancer of the breast was identified in 75% of the patients. Mammographic examination of this group established 64 nonpalpable carcinomas, 10 of them being preinvasive. Some criteria of forming groups at high risk for breast cancer are considered. It is stressed that despite the available range of methods of timely detection of breast cancer their integration with clinical practice is still lagging behind.