It is an acute inflammatory condition confined to supraglottic structures which include epiglottis, aryepiglottic folds and arytenoids.

急性会厌炎是一种急症状态，主要累及喉部声门上区的会厌及其周围组织（包括会厌谷、杓状会厌襞和杓状软骨等。