laryngeal atresia
Medical Definition
Congenital absence of the lumen of the larynx. laryngeal atresia is a rare condition. if the laryngeal opening fails to develop, fluid secreted by the lungs cannot be expelled. in a fetus with laryngeal atresia, the lungs are either normal or hyperplastic, not hypoplastic. mortality is reported as 100%. at obstetric us examination, views of the fetal neck demonstrate a dilated trachea filled with trapped fluid. views of the fetal chest show enlarged, hyperechoic lungs, with dilated fluid-filled bronchi. fetal ascites is usually present. [https://orcid.org/0000-0002-0736-9199, pmid:10517457, pmid:17715321]
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