[A case of laryngocele in a newborn infant].

A case of a new-born infant, aged 35 days old, with laryngocele was successfully treated by laryngomicroscopic operation under general anaesthesia. He suffered from congenital inspiratory dyspnea due to cystic swelling of the left arytenoid region. Although therapeutic efforts had been made by repeated punctions for the laryngeal cystic swelling, inspiratory dyspnea did not improve. Total removal of laryngocele by laryngomicro-surgery seems to be appropriate for this lesions.