【pass】評論

骨瘤X光下病徵巨細胞腫瘤      骨溶解(泡沫狀)多發性骨髓瘤   打洞狀骨源性肉瘤      科德曼三角/陽光四射型骨膜病變尤因氏肉瘤      洋蔥皮狀

【PPMTPASS】評論

Ewing sarcoma is the second most common highly malignant primary bone tumour of childhood after osteosarcoma, typically arising from medullary cavity with invasion of Haversian system. They usually present as moth-eaten destructive permeative lucent lesions in the shaft of long bones with large soft tissue component without osteoid matrix, and typical onion skin periostitis. It may also involve flat bones and appears sclerotic in up to 30% of cases.