A retention-type cyst of the supraglottic structures not manifesting as either an anterior or lateral saccular cyst. With a supraglottic cyst, the duct of a single gland is thought to become obstructed and to thereby retain secretions. By contrast, with a saccular cyst, the mouth of the laryngeal saccule becomes obstructed.
A few months later, the granuloma has detached. The right false cord margin has lateralized slightly due to partial surgical excision (see photo 6), allowing more of the right cord (left of photo) to be seen than the left. The small lesion, low aryepiglottic fold on the right (left of photo), may be one small unremoved locule of the original cyst. Since it is asymptomatic and superficial, if it enlarges it will likely spontaneously collapse or can be removed or laser coagulated at a later date.
