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A form of postaxial polydactyly, a condition characterized by the occurrence of supernumerary digits in the upper and/or lower extremities. In postaxial polydactyly type A, the extra digit is well-formed and articulates with the fifth or a sixth metacarpal/metatarsal. PAPA7 is an autosomal recessive condition characterized by postaxial polydactyly restricted to the feet.




Polydactyly, postaxial, type A7