Noneruption of teeth - maxillary hypoplasia - genu valgum is an extremely rare syndrome that is characterized by multiple unerupted permanent teeth, hypoplasia of the alveolar process and of the maxillo-zygomatic region, severe genu valgum and deformed ears. The disease is MONDO_0010104 (non-eruption of teeth-maxillary hypoplasia-genu valgum syndrome). Also known as: Stoelinga-de Koomen-Davis syndrome.