Abstract
Narrow Band Imaging (NBI) endoscopy is reported to be effective in diagnosing infinitesimal superficial cancer in the upper gastrointestinal tract and highly accurate in the diagnosis of early stage cancer in the oropharynx and hypopharynx. NBI endoscopy is rapidly coming into wide use in recent times. In our study we evaluated the effectiveness of diagnosing laryngeal cancer by NBI endoscopy, especially in distinguishing between benign and precancerous lesions, determining the cancer spread area, finding recurrent cases and providing early diagnoses.
NBI endoscopy was found to be effective in distinguishing cancer from benign lesion and in determining the cancer spread area, however, we had difficulties diagnosing some recurrent cases after radiotherapy. NBI endoscopy was effective for early diagnoses but we sometimes found gaps between endoscopic diagnoses and pathological diagnoses. Further investigation is necessary with more cases.
