Source:http://linkedlifedata.com/resource/umls/id/C0264303
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.