Tracheobronchomalacia. Williams-Campbell Syndrome . Syndrome, Williams-Campbell . Tracheobronchomalacias . Williams Campbell Syndrome . Chondromalacia of Trachea and Bronchi . A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the TRACHEA and the BRONCHI. This results in a floppy non-rigid airway making patency difficult to maintain. . 1.00