LAMA5 and Andersen-Tawil syndrome: This is in line with the histopathological findings of the probands in family 2 and 3 who displayed thickening and thinning of the GBM associated with podocytes foot processes retraction or fusion which is rarely observed in collagen 4 genes-related ATS and that should be regarded as a pathognomonic sign of LAMA5 variants coinheritance.