High-resolution chromoendoscopy. Chromoendoscopy, the intravital staining of gastrointestinal epithelia, provides additional diagnostic information with respect to the epithelial morphology and pathophysiology....
In this video we can see unilateral nasal polyps in a middle-age male patient. The appearance of endoscopic morphology is indistinguishable from ethmoidal polyps. During the postnasal space examination...
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