Nonsyndromic congenital nail disorder 8

This form of isolated toenail dystrophy has been found to segregate as an autosomal dominant trait in families in which another member has the autosomal recessive skin disorder dystrophic epidermolysis bullosa (226600) or transient bullous dermolysis of the newborn (131705), the features of which include dystrophic nails. The nail changes in isolated toenail dystrophy are most severe in the great toes and consist of the nail plate being buried in the nail bed with a deformed and narrow free edge (summary by Sato-Matsumura et al., 2002). This form of toenail dystrophy is referred to here as nonsyndromic congenital nail disorder-8 (NDNC8). For a list of other nonsyndromic congenital nail disorders and a discussion of genetic heterogeneity, see NDNC1 (161050). [from OMIM]