Congenital onychodysplasia of the index fingers

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Congenital onychodysplasia of the index fingers is defined by the presence of the condition at birth, either unilateral or bilateral index finger involvement, variable distortion of the nail or lunula, and polyonychia, micronychia, anonychia, hemionychogryphosis, or malalignment.[1]

  • This condition is also called Iso-Kikuchi syndrome, since Iso was the first author who published it in a Japanese paper.[2]

See also[edit]


  1. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. p. 783. ISBN 0-7216-2921-0. 
  2. ^ Baran R, Stroud JD (February 1984). "Congenital onychodysplasia of the index fingers. Iso and Kikuchi syndrome". Arch Dermatol 120 (2): 243–4. doi:10.1001/archderm.1984.01650380103022. PMID 6696480. 

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