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. 2021 Sep 17;6(12):533–535. doi: 10.1016/j.vgie.2021.08.008

Figure 2.

Figure 2

The observation field after expanding the larynx using a curved laryngoscope. The cervical esophageal cancer extended to the left pyriform sinus of the hypopharynx (A, white-light observation). A protruding component was observed on the caudal side of the cervical esophageal cancer, and near-focus mode showed abnormal blood vessels (B, white-light observation; C, narrow-band imaging observation). Lugol chromoendoscopy showed the cervical esophageal cancer as an unstained area (D and E).