作者描述了两个毛细血管扩张型骨肉瘤的病例。强调了这个肿瘤与动脉瘤样骨囊肿在病理和X线方面鉴别的困难。组织学上,它们含有由同样组织构成的含有血液及坏死肿瘤组成的囊性空腔,其轮廓常以由形成不良的细胞所组成的隔为界限。在毛细血管扩张型骨肉瘤和动脉瘤样骨囊肿两者均可发现少量的类骨质形成。因恶性细胞常位于类似囊 The authors describe two cases of telangiectasia osteosarcoma. Emphasis was placed on the difficulty in distinguishing the tumor from the aneurysmal bone cyst in pathology and X-ray. Histologically, they contain a cystic cavity consisting of the same tissue containing blood and necrotic tumors, the outline of which is often bounded by a compartment consisting of poorly formed cells. A small amount of osteoid bone formation can be found in both telangiectasia osteosarcoma and aneurysmal bone cyst. Because malignant cells are often located in similar capsules