1naresh
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Indirect CT Signs of UVFP 1 Dilation of the ipsilateral pyriform sinusĀ 2 Medial rotation of the ipsilateral aryepiglottic foldĀ 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