Superior Thyroid Cornu Anatomical Variation Causing Globus Pharyngeous and Dysphagia

Figure 2

CT neck. Axial cut with contrast at the level of C5 vertebra. Rotation of thyroid cartilage, black arrow shows the left thyroid cornu. The airfilled cavity next to the left thyroid cornu is the left piriform sinus which is clearly bigger than the right one due to the rotation of the larynx (black thin arrows).