肩胛骨软骨类肿瘤的影像鉴别诊断

Imaging differential diagnosis of cartilage tumors of scapula

目的总结肩胛骨软骨类肿瘤的病种分布及其影像学鉴别诊断特征。方法回顾性分析经病理证实的35例肩胛骨软骨类肿瘤病变,分析其发病规律及影像学鉴别诊断。结果肩胛骨软骨类病变35例,其中骨软骨瘤23例(65.7%),软骨瘤3例(8.6%),软骨母细胞瘤2例(5.7%),软骨肉瘤7例(20%)。男女比例为2.2:1,良性肿瘤平均年龄为19.6岁,恶性肿瘤平均年龄为51.7岁。其中2例软骨瘤和7例软骨肉瘤可见不同形状钙化。结论肩胛骨软骨类肿瘤中良性肿瘤占大多数,以骨软骨瘤为主。良性肿瘤好发于青年,恶性肿瘤好发于老年。软骨类肿瘤影像具有特征性,病变内的钙化可作为诊断线索。边缘清晰有硬化边常提示为软骨瘤,边缘不清伴有软组织肿块时常提示为软骨肉瘤。

Objective To explore the distribution characteristics and imaging differential diagnosis of cartilage tumors of scapula .Methods 35 cases of lesions confirmed by pathology in the scapula were retrospectively analyzed and their distri‐bution and imaging characteristics were assessed .Results 35 patients included osteochondroma in 23 cases （65 .7% ） , chondroma in 3 cases （8 .6% ） ,chondroblastoma in 2 cases （5 .7% ） ,and chondrosarcoma in 7 cases （20% ） .The male‐fe‐male ratio is 2 .2 ：1 ,the average age of the benign tumors group was 19 .6 years and that of the malignant tumors group was 51 .7 years .Various calcification can be seen in 2 cases of chondroma and 7 cases of chondrosarcoma among 35 pa‐tients .Conclusion Benign cartilage tumours are more common in scapula ,in which the osteochondroma is the most com‐mon type .Benign tumors are more common in children and young adults ,conversely ,malignant tumors in older patients . The imaging features of cartilage tumors ,the calcification within the lesions can be used as a diagnostic clue of chondro‐genic tumors .The clear edge of hardened may be diagnosed as chondroma ,the edge is not clear with soft tissue mass may be the tips for chondrosarcoma .