case_images: PMC5896422_01
case_images: Contrast-enhanced CT showing subglottic soft tissue mass extending at the level of C4, C5, C6, C7 vertebrae, causing marked narrowing of the airways. (a) is axial view and (b) is coronal view.
case_images: CRIOT2018-2897943.001.jpg
case_images: PMC5896422_01_CRIOT2018-2897943.001.jpg
case_images: fig1
case_images: Tracheo-laryngoscopic examination showing subglottic mass obstructing the airway.
case_images: CRIOT2018-2897943.002.jpg
case_images: PMC5896422_01_CRIOT2018-2897943.002.jpg
case_images: fig2
case_images: The patient underwent emergency tracheobronchoscopy which showed subglottic mass (Figure 2).
case_images: Histopathology showing thyroid follicles filled with colloid.
case_images: CRIOT2018-2897943.003.jpg
case_images: PMC5896422_01_CRIOT2018-2897943.003.jpg
case_images: fig3
case_images: The histopathology confirmed ectopic thyroid tissue (Figures 3-5).
case_images: Positive cytoplasmic staining with thyroglobulin immunostain confirming the thyroid origin.
case_images: CRIOT2018-2897943.004.jpg
case_images: PMC5896422_01_CRIOT2018-2897943.004.jpg
case_images: fig4
case_images: The histopathology confirmed ectopic thyroid tissue (Figures 3-5).
case_images: Positive nuclear staining with TTF-1 immunostain confirming the thyroid origin.
case_images: CRIOT2018-2897943.005.jpg
case_images: PMC5896422_01_CRIOT2018-2897943.005.jpg
case_images: fig5
case_images: The histopathology confirmed ectopic thyroid tissue (Figures 3-5).