. Radiography and radio-therapeutics . ent. It is also useful in a negative sense in the hystericalcondition, for it is often only necessary to convince patients suffering fromthis condition that there is no evidence of malignant disease to effect a speedyand often a permanent cure. (2) The second stage, that of a degree of constriction with partial ob-struction, is accompanied by some hypertrophy on the proximal side, whichmay for a long time maintain a condition of equilibrium. At this stage theremay be no sign of emaciation. (3) The third stage of more marked or complete obstruction is freq


. Radiography and radio-therapeutics . ent. It is also useful in a negative sense in the hystericalcondition, for it is often only necessary to convince patients suffering fromthis condition that there is no evidence of malignant disease to effect a speedyand often a permanent cure. (2) The second stage, that of a degree of constriction with partial ob-struction, is accompanied by some hypertrophy on the proximal side, whichmay for a long time maintain a condition of equilibrium. At this stage theremay be no sign of emaciation. (3) The third stage of more marked or complete obstruction is frequentlyaccompanied by considerable dilatation of the oesophagus. Here the dis-tinction has to be drawn between a simple and a malignant stricture. In theformer condition the history is generally longer, extending over many yearsin some cases, the longest the writer has come across being twenty in itself excludes malignant disease. In non-malignant dilatationthe oesophagus may become dilated to an enormous degree. The central.


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