[Sonography of small and occult breast cancer]

The importance of sonography in the diagnosis of the small palpable and occult carcinoma of the female breast is discussed on the basis of the authors' own studies. Of a total of 98 carcinomas in this group, 80 were identified by means of mammography, 7 by ductography and 11 by sonography; a total of 3573 women were examined sonographically in whom results of palpation and x-ray examination required further clarification. Sonography is a valuable additional examination that should be employed strictly on-target according to previously worked-out criteria.