Ectrodactyly
（重定向自Clawhand）
Ectrodactyly, split hand, cleft hand, derived from the Greek ektroma (abortion) and daktylos (finger) = literally, abortion (of a) finger, involves the deficiency or absence of one or more central digits of the hand or foot and is also known as split hand/split foot malformation (SHFM). The hands and feet of people with ectrodactyly are often described as "claw-like" and may include only the thumb and one finger (usually either the little finger, ring finger, or a syndactyly of the two) with similar abnormalities of the feet.