Abstract
A rational choice of treatment modality for patients with cancer of the larynx and hypopharynx depends upon a full evaluation of the size and location of the lesion and the extent of invasion of the adjacent structures. Radiological examination of the lesion is a valuable adjunct to clinical and endoscopic examinations. Currently employed methods are as follows: (1) Lateral soft tissue film of the neck. Its value is limited to detecting involvement of the preepiglottic, postpharyngeal soft tissue shadow and thyroid cartilage. (2) Frontal tomography of the larynx. Examination of the larynx by tomography is useful, but frequently disappointing. It is often difficult to detect a small lesion and it is frequently impossible to differentiate a tumor mass from an inflammatory edema.18(3) Barium swallow study. Barium swallow shows a fair visualization of the opacified areas; however, coating is often not adequate for a definite study of the hypopharynx
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