“…In addition to its central features, CMCC may be associated with other anomalies of the head and neck, including clefts of the lower lip, mandible, chin, and tongue (2,4,5,(10)(11)(12)20,27), an underdeveloped mandible (5,8), and hypoplasia/absence of supporting structures of the neck, such as the hyoid bone (2,22,27). It has occurred in the presence of, and may even be related to, both bronchogenic cysts (13,16,21,28) and thyroglossal duct abnormalities (1,3,6,15).…”