[Classification of auricle floor abnormalities in 1st and 2nd branchial arches syndromes]

1000 cases of the 1st and 2nd branchial arches syndrome and abnormalities of the floor of the auricle associated with this syndrome provided evidence for design of their classification. The classification distinguishes severe malformations of the floor of the auricle, malformations with tissue defect, deformations of the floor of the auricle itself.