Polydactylty is the presence of one or more supernumerary digits, or parts of digits. The word is derived from the Greek polus (many) and daktulos (finger).
It is associated with a wide variety of syndromes including trisomy 13, Rubstein-Taybi syndrome, Orofaciodigital syndrome and Ellis-van Creveld syndrome.
Reference: Nelson Textbook of Paediatrics, 18th Ed, 2007: Saunders.
Previously published: 18/09/14