Abstract
It is uncommon for liposarcoma to develop in the maxilla, and only a few such cases have been previously reported in Japan. The prognosis of patients with round cell type liposarcoma is also very poor. We herein present a case of round cell type liposarcoma. A 50-year-old male was diagnosed as having liposarcoma after undergoing several biopsies, and therefore underwent a series of radiotherapy combined with chemotherapy. In spite of such treatment, however, he eventually died due to metastasis. This patient turned out to be a rare case who demonstrated a mixed pattern of both papilloma and liposarcoma.
