Pneumomediastinography in carcinoma of the oesophagus

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Abstract
Forty-one patients with carcinoma of the gullet and esophagogastric junction were investigated by means of a new pneumomediastinographic method of pertracheal insufflation. More than 1,600 patients suffering from various pulmonary or mediastinal lesions have undergone this dimple time-saving procedure. Pneumomediastinography cannot replace radiography of the gullet or esophagoscopy in cases of cancer of the esophagus. Since it reveals valuable details, which remain hidden in conventional radiographs or during esophagoscopy, it may complement the findings of 2 traditional methods of investigation. The main advantages of pneumomediastinography in the diagnosis of cancer of the gullet are: it permits accurate assessment of the size and shape of the tumor; in patients submitted to radiotherapy, the local response to this treatment may be determined by changes in the size of the tumor shadow in pneumomedlastinal tomograms; it establishes reliably that the tumor does not invade the adjacent organs; it facilitates visualization of some of the enlarged lymph nodes in the mediastinum which are not visible in conventional radiographs or tomograms; and the radiological characteristics of these lymph nodes facilitate an approximate differentiation between inflammatory and metastatic enlargements.
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