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Cooks Syndrome: A Case Report and Brief Review


Address correspondence to Christina B. Brennan, M.D., 1004 Chafee Ave, FH-100, Augusta, GA 30912, or e-mail:


Abstract:  Congenital anonychia is rare, particularly when all 10 toenails are absent. When anonychia is associated with absence of distal phalanges, a diagnosis of Cooks syndrome must be considered. We present a case and discussion of a patient with congenital anonychia, absent distal phalanges, and rudimentary hypoplastic middle phalanges and brachydactyly, consistent with Cooks syndrome.