Lymphangioma and cystic hygroma. Correction of facial growth disharmony and obstructive sleep apnea.

Soft tissue tumors and masses of the mouth and face can adversely affect the growth of facial bones. Cystic hygroma and lymphangioma, when massive, can create serious deformities of the maxilla and mandible. These deformities are correctible, surgically, and may be preventable if surgery and orthodontics are coordinated early in life. During and after surgery, airway management is paramount, but paradoxical effects such as obstructive sleep apnea may be observed.