Squamous cell carcinoma arising in a skin graft is rare. Previous reports c
oncern the use of skin in heterotopic locations namely the vagina and oral
cavity. We report a case of squamous cell carcinoma, which arose in a skill
graft used fur resurfacing a scalp defect. The defect followed the excisio
n of a basal cell carcinoma 11 years previously The excision was incomplete
and radiotherapy had been given. The possible pathological mechanisms for
the development of a squamous cell carcinoma in transplanted skin are discu
ssed.