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目的 分析骨巨细胞瘤的CT征象。方法 回顾性分析 42例经手术病理证实的骨巨细胞瘤的CT表现。结果 ( 1)骨巨细胞瘤骨质破坏有囊样膨胀性破坏和单纯溶骨性破坏两类 ,前者占多数 ;( 2 )病灶内多数无骨性分隔 ( 4 0 /42 ,95 .2 % ) ;( 3)多数病灶内可见骨嵴 ( 6 3 .2 % ) ;( 4 ) 44 .7%的病例存在完整或不完整的硬化边 ;( 5 )骨内软组织密度多不均匀 ,其中 5例 ( 11.9% )出现液 -液平面 ;( 6 )骨外软组织肿块多出现在骨壳断续或不完整的病例。结论 CT可以加深对骨巨细胞瘤的认识 ,丰富其影像学征象 ,提高对该肿瘤的诊断及鉴别诊断的能力。
Objective To analyze the CT features of giant cell tumor of bone. Methods The CT findings of 42 giant cell tumors confirmed by surgery and pathology were retrospectively analyzed. Results (1) The giant cell tumor of bone had cystic destruction and simple osteolytic destruction, the former accounted for the majority. (2) Most of the lesions had no bony septum (40/52, 95.2% ); (3) Most of the lesions showed bone ridge (63.2%); (4) 44.7% cases had complete or incomplete sclerosis; (5) (11.9%) appeared liquid - liquid level; (6) extracranial soft tissue mass occurred in cases of intermittent or incomplete bone hull cases. Conclusion CT can deepen the understanding of giant cell tumor of bone, enrich its imaging signs and improve the diagnosis and differential diagnosis of the tumor.