Malignant changes in burn scars have long been reported in the literature. Most cases are squamous cell carcinomas and some other epithelial cell carcinomas. Soft tissue tumours are considered rare. A rare case of sarcoma arising in a scar on the sole of the foot in a 64-year-old male is reported. He had suffered fire burns 25 years previously. Histological findings indicated that the tumour was a pleomorphic liposarcoma. Amputation was performed, but he died 3 months after the operation. To our knowledge, this is only the second case of liposarcoma developing in a burn scar.