[Clinical advantage of xeroradiography in the diagnosis of breast cancer].

Xeroradiography is an excellent method of visualizing soft tissue structures in mammography. A feature of xeroradiography is the edge effect and wide recording latitude, which permit visualization of variety of tissue densities. Recent advancement in film mammography using molybdenum anode and film-screen system appears to exceed xeroradiography in spatial resolution and sensitivity. In the large breast, however, the characteristic lower energy radiation of molybdenum anode is almost absorbed by the glandular tissue, resulting in a loss of image quality and reduced diagnostic accuracy. Xeroradiography can maintain the good contrast resolution even in such a case.