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目的:总结骨样骨瘤的X线平片与CT表现。方法:回顾性分析16例经手术病理证实的骨样骨瘤的影像学表现,16例均行X线检查,6例行CT扫描检查。结果:(1)部位,16例中骨样骨瘤发生于肱骨上段2例、股骨颈2例、股骨粗隆间2例、股骨干2例、胫骨干4例、腓骨干2例、髌骨1例、跟骨1例;(2)类型,皮质型8例、松质骨型6例、骨膜型2例;(3)瘤巢,X线13例、CT6例;(4)牛[征,X线8例、CT3例;(5)骨质增生硬化,X线13例、CT6例;(6)软组织肿胀,X线4例、CT4例。结论:X线平片显示病变的整体形态有优势,是骨样骨瘤首选的检查方法,CT对瘤巢的显示敏感和定位准确,两者结合有利于提高骨样骨瘤的诊断符合率。
Objective: To summarize the X-ray and CT findings of osteoid osteoma. Methods: The imaging findings of 16 osteoid osteomas confirmed by surgery and pathology were analyzed retrospectively. Sixteen cases underwent X-ray examination and six cases underwent CT scan. Results: In part (1), 16 cases of osteoid osteoma occurred in 2 cases of upper humerus, 2 cases of femoral neck, 2 cases of femoral intertrochanteric, 2 cases of femoral shaft, 4 cases of tibial shaft, 2 cases of fibular shaft, 1 case of patella (2) type, type of cortical in 8 cases, cancellous bone in 6 cases, periosteum in 2 cases; (3) tumor nests, X-ray in 13 cases, CT6 cases; (4) X-ray in 8 cases and CT in 3 cases. (5) Osteoblast sclerosis, X-ray in 13 cases and CT in 6 cases. (6) Soft tissue swelling, X-ray in 4 cases and CT in 4 cases. CONCLUSION: X-ray shows the overall morphology of the lesion is superior. It is the first choice of osteoid osteoma. CT is sensitive to neoplasms and accurate in positioning. The combination of the two is helpful to improve the coincidence rate of osteoid osteoma.