Oral costicosteroid was started because of increased severity of blistering, but the child failed to show any improvement. Dystrophic nails bulbous swelling of nail folds. The line of clevage in EB simplex type is intraepidermal. The skin changes are milder and subside with passage of time. Dystrophic EB is characterized by scarring and milia.
Light microscopy reveals bulla formation within upper dermis.
A definitive subclassifi-cation of EB requires facilities for electron microscopy or antigen mapping. However, these were not available to us.