has material basis in germline mutation in COL7A1 nonsyndromic congenital nail disorder 8 https://www.malacards.org/card/nail_disorder_nonsyndromic_congenital_8 nonsyndromic congenital nail disorder type 8 inherited isolated nail anomaly caused by mutation in COL7A1 UMLS:C1843761 toenail dystrophy, isolated MEDGEN:375277 GARD:0024828 Any inherited isolated nail anomaly in which the cause of the disease is a mutation in the COL7A1 gene. OMIM:607523 MESH:C564384 nail disorder, nonsyndromic congenital, type 8 MONDO:0011852 NDNC8 nail disorder, nonsyndromic congenital, 8 COL7A1 inherited isolated nail anomaly DOID:0080086 inherited isolated nail anomaly