Abstract
Summary: Radiology is of paramount importance in cancer of the larynx. The radiologist is in a position to give accurate delineation of the tumour and to assess muscle involvement by showing loss of normal movement. An adequate examination includes positive contrast tomo‐grams with films taken in quiet respiration and in expiratory and inspiratory phonation.Thermography provides a simple way of detecting gland metastases in the neck.After operation, by radiology we can help in the rehabilitation of these patients by showing how well they can speak and how they provide the required column of air for speech. The limitations of speech imposed by the operation can be shown. It may be possible to advise surgeons of a better operation if this upper oesophageal muscle is in fact required for useful speech after operation.

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