Another, COL7A1 compound heterozygous patient (case 15, Tables 4, 5), associated with a previously poorly characterized variant, c.4341+2T>C, and a clinical picture suggestive of RDEB inversa with mild blistering at birth, nail dystrophy in childhood, and later blisters that affected the buttocks, genital area, mild esophageal involvement, ankyloglossia, and nail dystrophy. The gene discussed is COL7A1; the disease is ankyloglossia.