[The radiological appearances of caustic burns in the upper intestinal tract (author's transl)].

Seventy-nine caustic burns of the upper gastrointestinal tract were divided into early and late effects. The radiological findings were analysed and discussed. The central role of radiology proved to be indisputable, particularly for demonstration of a perforation and for the control of treatment. Endoscopy is of particular value in the diagnosis of caustic burns if the radiological findings are negative, for following treatment and for clarifying atypical late changes.