ICD-11 definition : Dystrophic (dermolytic) epidermolysis bullosa is due to defects in or absence of type
VII collagen. As a result the anchoring fibrils which secure the epidermal basement
membrane to the dermis are defective or absent. The severe recessive form causes extensive
scarring and predisposes to aggressive squamous cell carcinoma.;
Dystrophic (dermolytic) epidermolysis bullosa is due to defects in or absence of type
VII collagen. As a result the anchoring fibrils which secure the epidermal basement
membrane to the dermis are defective or absent. The severe recessive form causes extensive
scarring and predisposes to aggressive squamous cell carcinoma.