[Endoscopic B-mode sonography of the neck. Preliminary findings]

This is the first report about cross-sectional echography of the parapharyngeal and paraoesophageal neck tissue by using an endoscopically positioned ultrasound linear-array transducer system. Technique and initial clinical results are demonstrated. Transcutaneous and endoscopic B-mode-sonographic findings are compared. Small tumours of parapharyngeal and paraoesophageal space can be detected by endosonography. Scars, oedema, and tumour can be differentiated. In addition to transcutaneous B-mode-echography, endoscopic echography can optimise the follow-up of head and neck tumours.