De Maeseneer M, Jaovisidha S, Lenchik L, Vaughan L M, Russack V, Sartoris D J, Resnick D
Department of Osteoradiology, Veterans Administration Medical Center, San Diego, California 92161, USA.
J Foot Ankle Surg. 1997 Jul-Aug;36(4):290-3; discussion 331. doi: 10.1016/s1067-2516(97)80075-0.
A 37-year-old woman with myositis ossificans of the left foot is reported. A faint density was seen on foot radiographs, whereas computed tomography images showed a rim of mineralization inferior to the second and third metatarsal bones. On short tau inversion recovery-weighted magnetic resonance images, a hyperintense lesion was demonstrated with hyperintensity extending to the surrounding soft tissues. The rim of ossification appeared hypointense. Other non-neoplastic soft tissue processes with bone formation such as pseudomalignant osseous tumor of soft tissues, florid reactive periostitis, and bizarre parosteal osteochondromatous proliferation occur more commonly in the foot than myositis ossificans. A differential diagnosis of these lesions including periosteal and parosteal osteosarcoma, periosteal chondroma, and osteomyelitis is discussed.
报告了一名37岁患有左足骨化性肌炎的女性。足部X线片可见模糊的密度影，而计算机断层扫描图像显示第二和第三跖骨下方有一圈矿化影。在短tau反转恢复加权磁共振图像上，可见一个高信号病变，高信号延伸至周围软组织。骨化边缘呈低信号。其他伴有骨形成的非肿瘤性软组织病变，如软组织假恶性骨肿瘤、 florid反应性骨膜炎和奇异的骨旁骨软骨瘤样增生，在足部比骨化性肌炎更常见。讨论了这些病变的鉴别诊断，包括骨膜和骨旁骨肉瘤、骨膜软骨瘤和骨髓炎。
