[Endoscopic ultrasonography of the upper part of the digestive tract. II].

Endoscopic ultrasonography is a new method of visualization which makes it possible to visualize reliably and in detail the wall the digestive tract and its close surroundings. Indication is above all diagnosis of tumours and their staging. The authors submit their initial experience with the method in a group of 71 examinations in 65 subjects. The conclusions of endosonography were confirmed as correct in 96.7% and provide evidence of the asset and possibilities of the method in the differential diagnosis of diseases of the upper portion of the digestive tract.