What physical disability is this?

A person of about average mental capacity, but significant physical disfigurements as follows:

-Very large, thick-set head and neck which are fixed at a backward tilt (chin always pointing upwards, person cannot tilt their chin down to look at the floor or turn head sideways).

-Neck is undefined, head appears attached almost directly to the body.

-Very small, thick, low-set ears.

-Quite short stature, puberty very late onset/not very apparent.

-Large tongue always protruding from mouth.

-Voice raspy, croaky and droning, sounds like the person is breathing in when they talk.

It is not Down Syndrome.