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目的总结骨原发性平滑肌肉瘤的X线、CT表现,提高对其影像学认识。资料与方法搜集资料完整且经病理证实的骨原发性平滑肌肉瘤10例,回顾性分析其X线、CT表现。结果股骨远侧骨端3例,胫骨近侧骨端2例,胫骨干、股骨干、锁骨、骶骨和髂骨嵴各1例,均为单发病灶,其中溶骨型3例,囊肿型3例,混合型4例。6例见骨梗死灶,4例见骨膜反应,4例合并大小不等的软组织肿块影,1例合并病理性骨折。结论骨原发性平滑肌肉瘤主要发生于长骨骨端,以膝关节附近最为多见,多侵犯单骨。溶骨性骨质破坏区内或周围软组织肿块出现骨梗死灶,有助于对骨平滑肌肉瘤的诊断。
Objective To summarize the X-ray and CT findings of primary leiomyosarcoma and to improve its imaging knowledge. Materials and Methods 10 cases of primary primary leiomyosarcoma confirmed by pathology were collected and analyzed by X-ray and CT. Results There were 3 cases of distal femur, 2 cases of proximal tibia and 1 case of tibial shaft, femoral shaft, clavicle, sacrum and iliac crest. All of them were solitary lesions, of which 3 were osteolytic and cyst 3 Cases, mixed type in 4 cases. 6 cases of bone infarction, 4 cases of periosteal reaction, 4 cases of soft tissue mass with varying sizes and 1 case of pathological fracture. Conclusions Bone primary leiomyosarcoma mainly occurs at the long bone end, which is most common near the knee joint and inflicts more on the single bone. Osteolytic bone destruction within or around the soft tissue mass of bone infarction, contribute to the diagnosis of leiomyosarcoma.