Fig. 5. Ultrasonographic assessment of pyriform sinus. The transducer is positioned transversely on the side of the neck at the thyroid cartilage (Tc) level. Just medial to the thyroid cartilage, the pyriform sinus (Ps) is shown as a hypoechoic area. Ca: common carotid artery.

J Korean Dysphagia Soc 2024;14:87~94 https://doi.org/10.34160/jkds.24.003

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