case_images: PMC7263996_01
case_images: Endoscopic image showing edematous vocal cords (arrows).
case_images: gr1.jpg
case_images: PMC7263996_01_gr1.jpg
case_images: fig0005
case_images: Preoperative assessment required fibro laryngoscopy showed bilateral lesions with expanded polypoid lesion and confirmed a bilateral grade III RE requiring microflap surgery (Fig. 1).
case_images: Tracheal carina view through the Viva-sight  Single Lumen Tube integrated camera, the VivaSight-endoblocher  is positioned in the right bronchus.
case_images: gr2.jpg
case_images: PMC7263996_01_gr2.jpg
case_images: fig0010
case_images: VivaSight-endoblocher  (EB) (Ambu A/S, Baltorpbakken 13, DK-2750 Ballerup, Denmark) was positioned in the right bronchus (Fig. 2).