CT signs of UVFP as previously described4-7
| Indirect CT Signs of UVFP | |
|---|---|
| 1 | Dilation of the ipsilateral pyriform sinus |
| 2 | Medial rotation of the ipsilateral aryepiglottic fold |
| 3 | Thickening of the ipsilateral aryepiglottic fold |
| 4 | Dilation of the ipsilateral laryngeal ventricle |
| 5 | Medial displacement of the posterior aspect of the ipsilateral true vocal fold |
| 6 | Mushroom sign,4 ipsilateral laryngeal ventricle dilation with medialization of the posterior cord margin combined with contralateral anterior subglottic air to generate a mushroom appearance on axial imaging |
| 7 | Anteromedial displacement of the ipsilateral arytenoid cartilage |
| 8 | Loss of the ipsilateral subglottic arch |