COL7A1 and Nail dystrophy: Another patient (case 4, Tables 4, 5) had a heterozygous missense variant COL7A1 c.5416G>C, p.(Gly1806Arg), previously unreported, and associated a mild phenotype with nail dystrophy of the toes, as well as of two fingers that started when the patient was nine months old, and finger blisters that appeared later at nine years old.