You searched for: “abrachiocephalias
abrachiocephalia, acephalobrachia (s) (noun); abrachiocephalias, acephalobrachias (pl)
A congenital absence of the head and arms or upper limbs: The veterinarian was puzzled by the birth of the pig that had been born with abrachiocephalia.

The acephalobrachia and the abrachiocephalia consist of humans that are missing heads and upper arms during fetal development and then at birth.