| umls-concept:C0264303 | skos:definition | MSH: A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the LARYNX. This results in a floppy laryngeal wall making patency difficult to maintain.,NCI: A usually congenital abnormality characterized by softening of the laryngeal cartilage. It presents in infancy with stridor. | lld:umls |
