FIELD: medicine. SUBSTANCE: method involves determining pathologically changed zone by irradiating the mammary gland with penetrating radiation and recording the radiation passed through the tissue using two-coordinate spatially sensitive detector. Matrices of small-angle scattering intensity distribution are additionally built when applying radioscopy with single or several narrow lightly divergent beams of penetrating radiation to zones of object under study located in the pathologically changed zone and zones in the area not affected by pathological changes. The matrices corresponding to unchanged tissues of the object under study are compared to those containing in a database and transformed tissue matrices are compared to their database analogs. The comparison results determine changes occurred in tissues with sex and age factor taken into consideration. The device has penetrating radiation source, aperture, position-sensitive transducer and is provided with system for moving relative to the object and information processing unit. The aperture builds at least one slightly divergent beam. The position-sensitive transducer is mounted at some distance from the object to enable one to record angular distribution of radiation intensity under small angles. EFFECT: high image contrast quality; enhanced accuracy of diagnosis. 3 cl, 3 dwg
