Ellis–Van Creveld syndrome (also called mesoectodermal dysplasia but see 'Nomenclature' section below) is a rare genetic disorder of the skeletal dysplasia type.
Signs and symptoms
It involves numerous anomalies including:
Post-axial polydactyly
Congenital heart defects (most commonly an atrial septal defect producing a common atrium, occurring in 60% of affected individuals)
Teeth present at birth (natal teeth)
Fingernail dysplasia
Short-limbed dwarfism, mesomelic pattern
Short ribs
Cleft palate
Malformation of the wrist bones (fusion of the hamate and capitate bones). [Source: Wikipedia ]