Echographic visualization of lesions of the living intact human breast.

The purpose of this report is to show that the nature of lesions or tissue abnormalities of the living, intact human breast can be determined by the use of pulsed ultrasound. The study is not necessarily directed toward cancer detection and is not necessarily intended to replace existing technics of detection and diagnosis of breast le sions, but rather is aimed at the more fundamental question of whether or not the histological struc ture of tissue in general can be determined by ultrasonic technics. The breast was selected as a convenient acces sible organ for direct studies on the patient and because of the certainty of obtaining a quick microscopic diagnosis of the lesions. This study is one of the steps toward the examination of less accessible sites.