[Radiological findings in the hypopharynx after laryngectomy (author's transl)].

The hypopharyngiogram is a necessary investigation for diseases of the larynx. It is particularly valuable following laryngectomy, since the altered anatomy makes endoscopy difficult and enable only endoluminal tumour to be seen. Following operation and radiotherapy, the radiologist is also confronted by appearances which may be difficult to interpret. A knowledge of the operative technique makes correct diagnosis possible. The radiological signs of malignancy and benignancy have been evaluated and are demonstrated. The result suggests that it is necessary to modify radiological concepts. The possibility of curing early recurrences makes radiological observation very important during follow-up.