【摘要】 <正> 骨肉瘤(成骨肉瘤)是骨组织常见的恶性肿瘤。据日本登记(1964～1971年),原发性恶性骨肿瘤占所有骨肿瘤的16.5％,而骨肉瘤占前者的47.1％。本文收集我所手术切除标本43份,从形态研究其影响预后的可能因素。更多还原

【Abstract】 A pathomorphological observation of 43 specimens of osteosarcoma was performed and factors influencing its prognosis discussed. It was found that the 5 year survival rates of osteoblastic, fibroblastic and chondroblastic osteosarcomas were 16.7, 28.6 and 33.3% respectively, the former being the worst of them. It was also clear that the 5 year survival rates of mandibu-lar osteosarcoma and osteosarcoma of the long bone were 53.8 and 6.7% respectively, the former being 8 times higher than the latter. A breif discussion was also made about the possible factors influencing the favorable prognosis of mandibular osteosarcoma.更多还原