乳突成骨肉瘤ＣＴ表现一例赵云龙王晓彬李永才发生于颅骨肉瘤少见，仅占骨肉瘤的１％，本文报告１例经手术和病理诊断证实，发生于一侧乳突的成骨肉瘤。图１左侧内听道开口部后可见放射状骨针，同侧颈静脉凹消失，为骨样影所填充，天盖缘骨质稍示不整图２左外耳道后壁示一... One case of mastoid osteosarcoma CT findings Zhao Yunlong Wang Xiaobin Li Yongcai occurs in rare skull sarcoma, accounting for only 1% of osteosarcoma, this report 1 cases confirmed by surgery and pathological diagnosis occurred in one side of the mastoid osteosarcoma. Figure 1 on the left after the opening of the auditory canal radial bone can be seen, ipsilateral jugular vein disappear, as the bone-like shadow filled, the margin of the edge of the bony slightly discontent Figure 2 left external auditory canal posterior wall shows a ...