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Summary
Subepidermal blisters developed in eight patients after leg ulcer grafting. These transient lesions, appearing at donor or graft sites, lack a clear clinical or histological explanation.
Area of Science:
- Dermatology
- Wound Healing
- Surgical Complications
Background:
- Leg ulcers are chronic wounds often treated with skin grafting.
- Grafting aims to promote healing but can have complications.
- Subepidermal blistering is an unusual post-grafting event.
Purpose of the Study:
- To report and characterize subepidermal bullous lesions occurring after skin grafting for leg ulcers.
- To investigate potential causes and histological features of these post-grafting blisters.
Main Methods:
- Case series describing eight patients with grafted leg ulcers.
- Clinical observation of blister formation at donor and graft sites.
- Histopathological examination of blistered skin.
Main Results:
- Subepidermal bullous lesions appeared 4-8 weeks post-grafting in all eight patients.
- Blisters occurred centrally and peripherally to the graft, persisting for days.
- Histology showed normal epidermis, lymphocytic infiltration around dermal capillaries, and no signs of pemphigoid.
Conclusions:
- The etiology of these subepidermal blisters post-leg ulcer grafting remains unclear.
- Friction was not identified as a contributing factor.
- Further research is needed to elucidate the mechanism behind this phenomenon.