Otoendoscopically guided surgery

The endoscope with magnifying lens systems and retrotympanic sub-regions. During microsurgical pro­ angled view has, in all oto-rhino-laryngology, been cedures, the recognition of pathologic changes in developed from a basically diagnostical tool into a sur­ niches, recesses or occluded tunnels is considerably gical instrument. Earlier, it served to see what exists. facilitated. The disadvantages ...