研究设计。回顾性研究20例因骶骨脊索瘤和软骨肉瘤行肿瘤整块切除术的患者。
Study Design. Retrospective study of 20 consecutive patients who underwent en bloc tumor excision of sacral chordomas and chondrosarcomas.
相反原发性上颌骨恶性肿瘤则呈浸润性生长，骨质不规则破坏，大量瘤骨或瘤软骨形成、骨膜反应和软组织肿块等。
On the contrary, primary malignant maxillary tumor showed invasive growth, irregular bony destruction with massive bony or chondral tumor, periosteal reaction and soft tissue mass.
本病与发生于颅底的脊索瘤和软骨源性肿瘤不易鉴别，组化染色与电镜检查对鉴别诊断有帮助。
Destruction of spheno-occipital bone can be found in roentgenogram. It is difficult to distinguish chondroid chord?oma from chordoma and chondrogenic tumors which occur in this region.
脑膜血管外皮细胞瘤(HPC)和间叶软骨肉瘤是好发于脑脊膜和硬脑膜的侵袭性肿瘤。
Meningeal hemangiopericytoma (HPC) and mesenchymal chondrosarcoma are aggressive neoplasms with a propensity to involve the meninges and dura.
脑膜血管外皮细胞瘤(HPC)和间叶软骨肉瘤是好发于脑脊膜和硬脑膜的侵袭性肿瘤。
Meningeal hemangiopericytoma (HPC) and mesenchymal chondrosarcoma are aggressive neoplasms with a propensity to involve the meninges and dura.
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