![“Thumb” sign of epiglottitis. (a) Lateral radiograph of the soft tissues of the neck in a child with fever and sore throat demonstrates thickening and enlargement of the epiglottis (white open arrow). (b) The appearance of the oedematous epiglottis resembles a thumb and heralds an emergent finding.

Koontz NA, Seltman TA, Kralik SF, Mosier KM, Harnsberger HR. Classic signs in head and neck imaging. Clinical Radiology. 2016;71(12):1211-1222. doi:10.1016/j.crad.2016.09.006](attachment:eb6db8d2-f142-4b85-8f13-be064d1bb92e:image.png)

“Thumb” sign of epiglottitis. (a) Lateral radiograph of the soft tissues of the neck in a child with fever and sore throat demonstrates thickening and enlargement of the epiglottis (white open arrow). (b) The appearance of the oedematous epiglottis resembles a thumb and heralds an emergent finding.

Koontz NA, Seltman TA, Kralik SF, Mosier KM, Harnsberger HR. Classic signs in head and neck imaging. Clinical Radiology. 2016;71(12):1211-1222. doi:10.1016/j.crad.2016.09.006