Branchio-oculo-facial syndrome (BOFS) is characterised by low birth weight and growth retardation, bilateral branchial clefts that may be hemangiomatous, sometimes with linear skin lesions behind the ears ('burn-like' lesions), congenital strabismus, obstructed nasolacrimal ducts, a broad nasal bridge with a flattened nasal tip, a protruding upper lip with an unusually broad and prominent philtrum, and full mouth.

Supernumerary digits located at the radial side of the hand. Polydactyly (supernumerary digits) involving the thumb occurs in many distinct forms of high variability and severity. Ranging from fleshy nubbins over varying degrees of partial duplication/splitting to completely duplicated or even triplicated thumbs or preaxial (on the radial side of the hand) supernumerary digits.