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The excellent book by Matthes on the differential diagnosis of the internal diseases inspired his pupil Teschendorf to write a roentgenologic differential diagnosis, since the roentgenologic aspect was neglected in the Matthes work. This treatise should serve as a supplement to Matthes's textbook. In general, by differential diagnosis is meant the consideration of all pathologic changes that will help to explain the symptom complex and arrive at a final diagnosis. Teschendorf, however, insists on the use of x-ray examination exclusively, from which considerable difficulties must result. One should expect from the roentgenologic method that a differential diagnosis which follows morphologic and topographico-anatomic aspects would be successfully discussed. The various applications of contrast mediums as used for the examination of the stomach, colon, kidney and gallbladder may be helpful for this purpose. Also the concretions as far as they can be visualized within the abdomen may guide our diagnostic efforts. Combined
Lehrbuch der röntgenologischen Differentialdiagnostik der Erkrankungen der Bauchorgane. JAMA. 1937;109(10):817. doi:10.1001/jama.1937.02780360065031