Fiber Esophagoscopy
Gastroscopy can observe the situation of the esophagus, stomach, and duodenal bulb, while esophagoscopy is a diagnostic instrument that specializes in rubbing the esophagus. Both of them pass through the mouth to enter the site to be observed. The instrument has a diameter of about 8mm. After entering the device, if you have any discomfort, take a deep breath and spit out the liquid in the mouth. The examination can usually be completed in 2-5 minutes. If there is any abnormality, it will take more time to collect the specimen for pathological examination.
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