case_images: PMC6389478_01
case_images: Computed tomographic sagittal view demonstrating contrast medium accumulation in left piriform sinus
case_images: CCR3-7-295-g002.jpg
case_images: PMC6389478_01_CCR3-7-295-g002.jpg
case_images: ccr31965-fig-0002
case_images: The latter showed accumulation of contrast medium in the superior part of the piriform sinus on the left side (Figure 2).
case_images: Endoscopic view of the left piriform sinus with sinus/fistula opening ( )
case_images: CCR3-7-295-g003.jpg
case_images: PMC6389478_01_CCR3-7-295-g003.jpg
case_images: ccr31965-fig-0003
case_images: The findings were discussed with the patient and she consented to direct laryngoscopy, during which a fistula in the apex of the left sinus piriformis was detected (Figure 3).
case_images: Intraoperative cervicotomy situs with fistula (circle), thyroid cartilage (*), and left thyroid lobe ( )
case_images: CCR3-7-295-g004.jpg
case_images: PMC6389478_01_CCR3-7-295-g004.jpg
case_images: ccr31965-fig-0004
case_images: After resection of the inferior cornu of the thyroid cartilage, the fistula tract could be identified (Figure 4).