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Magnetic resonance imaging characteristics in patients with histopathologically proven fibrous dysplasia-a systematic review.
Skeletal Radiology ( IF 2.1 ) Pub Date : 2020-02-10 , DOI: 10.1007/s00256-020-03388-x
Anna-Reetta Kinnunen 1 , Reijo Sironen 2 , Petri Sipola 3
Affiliation  

OBJECTIVE To examine the demographics, lesion location, and characteristic magnetic resonance imaging (MRI) findings in patients with histopathologically proven fibrous dysplasia (FD). MATERIALS AND METHODS A systematic literature search of the MRI findings in patients with histologically proven FD was performed. Altogether, 76 articles with 136 patients were evaluated. RESULTS The mean age of the patients was 35.0 + - 18.5 years (range 1 month-75 years). Fifty-eight of the cases were females, 51 males, and in 27 gender was not defined. The most common locations were craniofacial (n = 55 (40%)), long bones (n = 31 (23%)), and spine (n = 24 (18%)). The monostotic form of FD was the most common. Signal intensities (SI) on T1-weighted images were predominantly hypointense (n = 46 (37%)). The SI was highly variable on T2-weighted images with hyperintensity being most common (n = 22 (18%)). Contrast enhancement was found in 75 (55%) FD patients. Secondary aneurysmal bone cysts (ABCs) and malignant transformation in patients without prior radiotherapy was found in some patients. CONCLUSION Current knowledge of the MRI findings in patients with FD is based mainly on case reports. SI in patients with FD is variable and contrast enhancement is common. FD may explain etiology of spinal bone tumor in some patients. FD with malignant transformation should be considered also in patients without prior radiotherapy. Further studies are needed to clarify if FD displays specific characteristics allowing it to be distinguished from other bone tumors.

中文翻译:

组织病理学证实的纤维异常增生患者的磁共振成像特征-系统评价。

目的检查经病理组织学证实为纤维性异型增生(FD)的患者的人口统计,病变部位和特征性磁共振成像(MRI)。材料与方法对经组织学证实的FD患者的MRI检查进行了系统的文献检索。总共评估了136例患者的76篇文章。结果患者的平均年龄为35.0±-18.5岁(范围1个月至75岁)。58例为女性,51例为男性,未定义性别为27例。最常见的位置是颅面(n = 55(40%)),长骨(n = 31(23%))和脊柱(n = 24(18%))。FD的单吻合形式是最常见的。T1加权图像上的信号强度(SI)主要为低感觉(n = 46(37%))。在T2加权图像上,SI高度可变,其中高强度最为常见(n = 22(18%))。在75名(55%)FD患者中发现对比度增强。在某些患者中,未进行放射治疗的患者中发现继发性动脉瘤性骨囊肿(ABC)和恶性转化。结论当前有关FD患者的MRI表现的知识主要基于病例报告。FD患者的SI是可变的,并且对比度增强是常见的。FD可以解释某些患者中脊柱骨肿瘤的病因。没有事先放疗的患者也应考虑伴有恶性转化的FD。需要进一步的研究来阐明FD是否显示出特定的特征,以使其能够与其他骨肿瘤区分开。在某些患者中,未进行放射治疗的患者中发现继发性动脉瘤性骨囊肿(ABC)和恶性转化。结论当前有关FD患者的MRI表现的知识主要基于病例报告。FD患者的SI是可变的,并且对比度增强是常见的。FD可以解释某些患者中脊柱骨肿瘤的病因。没有事先放疗的患者也应考虑伴有恶性转化的FD。需要进一步的研究来阐明FD是否显示出特定的特征,以使其能够与其他骨肿瘤区分开。在某些患者中,未进行放射治疗的患者中发现继发性动脉瘤性骨囊肿(ABC)和恶性转化。结论当前有关FD患者的MRI表现的知识主要基于病例报告。FD患者的SI是可变的,并且对比度增强是常见的。FD可以解释某些患者中脊柱骨肿瘤的病因。没有事先放疗的患者也应考虑伴有恶性转化的FD。需要进一步的研究来阐明FD是否显示出特定的特征,以使其能够与其他骨肿瘤区分开。FD患者的SI是可变的,并且对比度增强是常见的。FD可以解释某些患者中脊柱骨肿瘤的病因。没有事先放疗的患者也应考虑伴有恶性转化的FD。需要进一步的研究来阐明FD是否显示出特定的特征,以使其能够与其他骨肿瘤区分开。FD患者的SI是可变的,并且对比度增强是常见的。FD可以解释某些患者中脊柱骨肿瘤的病因。没有事先放疗的患者也应考虑伴有恶性转化的FD。需要进一步的研究来阐明FD是否显示出特定的特征,以使其能够与其他骨肿瘤区分开。
更新日期:2020-04-22
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