Nonsyndromic congenital nail disorder (NDNC) is rare and has been reported in only a small number of families. There is a variable expression of nail phenotypes among individuals. It has been identified that mutations in the RSPO4 and FZD6, components of the Wnt pathway, cause hypoplastic nail disorders. Hereditary leukonychia is caused by mutations in PLCD1. Defects in COL7A1 can cause heterogeneous clinical phenotypes extending from simple toe-nail dystrophy without skin fragility to typical dominant dystrophic epidermolysis bullosa.
Category
Skin disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
14 Diseases of the skin
Genetic and developmental disorders affecting the skin
EC22 Genetic defects of nails or nail growth
H01307 Nonsyndromic congenital nail disorder
Pathway-based classification of diseases [BR:br08402]
Signal transduction
nt06505 WNT signaling
H01307 Nonsyndromic congenital nail disorder
nt06528 Calcium signaling
H01307 Nonsyndromic congenital nail disorder