Van Maldergem syndrome [DOID:0060238]
A syndrome characterized by facial abnormalities such as telecanthus, epicanthus, broad flattened nose, large inverted W-shaped mouth and malformed ears, malformed extremities such as camptodactyly, clinodactyly, interdigital webbing and joint hyperlaxity and mental retardation.
Hennekam syndrome [DOID:0060366]
A lymphatic system disease characterized by he presence of intestinal lymphangiectasia, mental retardation, and characteristic facial anomalies. It is inherited in an autosomal recessive pattern. Most individuals with Hennekam syndrome have characteristic facial abnormalities, such as a flat face with accompanying puffy eyelids and hypertelorism; the nasal bridge is typically flat and the ears are typically small. Congenital extremity and genital lymphedema is present in most patients.