Abstract
Epiglottic cysts are often encountered in daily practice, and are usually asymptomatic prior to the onset of the following symptoms including discomfort of the throat and difficulty in breathing. We present a case in which progressive snoring appeared over a short period. The patient had sudden onset of difficulty in breathing for one and a half months, which was considered to be due to a sudden increase in the size of the cyst. Snoring was relieved after the cyst was surgically removed, accompanied with relief of sleep apnea, which had been found to be moderate preoperatively with an apnomonitor. In this case, the final diagnosis and therapeutic strategy benefited from the dynamic morphological findings of MRI. The sudden onset of snoring at night might indicate a space-occupying lesion of the upper airway.
