A boy, aged 3 months, was admitted to the Keio University Hospital, because of dyspnea associated with stridor and cyanosis. A diagnosis of tracheal stenosis was made after tracheotomy. Unfortunately he died two days later.
Postmortem examination showed as follows; The trachea was increasingly constricted as it descended. The membranous portion of the tracheal wall was absent and the posterior aspect was as rigid as the remainder of the wall. The thymus weighed 14Gm. The lungs were congested and edematous.
There were no malformations in the heart, the aorta or the lung. 12 cases of congenital tracheal stenosis without the membranous portion have been reported in the literature. These cases were analyzed.
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