CT初探背部弹力纤维瘤检出率  

Primary CT study of the prevalence of elastofibroma dorsi

作　　者：石建成 朱石柱 吴俊峰 邢海龙 王东 

机构地区：[1]北京市延庆县医院放射科,北京102100

出　　处：《实用放射学杂志》2014年第2期279-282,共4页Journal of Practical Radiology

摘　　要：目的 研究背部弹力纤维瘤（elastofibroma dorsi,EFD）发病率,增强对EFD的认识.方法 对本院检查的所有非背部症状就诊胸部CT共1 873例检查结果记为一般人群进行回顾性阅片,按EFD典型发病部位及影像学特点（①发病部位位于背部肩胛骨内侧肩胛下角、前锯肌与胸壁间;②CT表现为扁平椭圆状与肌肉近等密度软组织肿块,部分其内可见索条状脂肪密度间隔,增强扫描同肌肉密度,轻度强化无明显异常强化改变.）查找EFD并分析其发病情况.结果 1 873例被检者中,男1 184例,女689例,年龄最小14岁,最大95岁,平均61.3岁.共检出65例患者有EFD,其中男15例,女50例,女性检出率明显高于男性（x2=46.650,P=0.000＜0.05）.年龄最小42岁,最大92岁,平均73.8岁.双侧均有EFD占72％（47/65）,显著高于单侧发病28％（18/65）（x2 =25.877,P=0.000＜0.05）,单独左侧占12.3％（8/65）,右侧占15.4％（10/65）,左右侧无显著性差异（x2=0.258,P=0.612＞0.05）.发病率年龄分布：＜40岁为0％（0/189）、40～49岁为1.27％（3/236）、50～59岁为1.02％（4/389）、60～69岁为2.62％（10/382）、70～79岁5.80％（26/448）、≥80岁为9.61％（22/229）.从年龄分布看EFD呈随年龄增长发病率明显增加趋势.结论 EFD并不少见,很多均为亚临床患者,其好发于60岁以上老年女性,双侧多见,随年龄增长EFD检出率明显增加.熟悉其发病部位及影像学表现可有效减少漏诊.Objective To research the prevalence of elastofibroma dorsi（EFD） and reinforce the realization of this disease.Methods All of patient＇s chest CT scans who were not evaluated the symptom of pars dorsalis were retrospectively reviewed.According to EFD,the typical imaging feature was usually located in the infrascapular region,between the thorax wall and serratus anterior and latissimus dorsi,mainly shaped flat mound-like or semi-circular,isodensity like muscular,interlacing of linear streaks of fat densities,slightly enhanced or not enhanced on CT scan.Results 65 cases was detected in 1 873 cases （male 1184 and female 689）,15 cases were male and 50 were female.which showed significant difference in gender（x2 =46.650,P=0.000＜0.05）,female had higher incidence.72 ％ of tumors （47/65） were bilateral,28 ％ （18/65） were unilateral,which showed significant difference （x2 =25.877,P =0.000＜0.05）,bilateral tumors had higher incidence.For unilateral tumors 12.3 ％ （8/65） were in the left and 15.4％ （10/65） in the right,there was no statistically significant in side（x2 =0.258,P =0.612＞ 0.05）.Age distribution was as following：0 （0/189） in less than 40 years old,1.27％（3/236）in 40-49 years old,1.02％（4/389）in 50-59 years old,2.62％（10/382） in 60-69 years old,5.80 ％ （26/448）in 70-79 years old and 9.61 ％ （22/229）in exceed 80 years old,The prevalence was increased after 60 years.Conclusion EFD is not rare disease in aged,it is often an asymptomatic,more common in women after the sixth decade.and usually bilateral.The prevalence increases follow age.Familiarity with the location and imaging appearances of EFD may enhance the detection of this disease in elderly patients.

关 键 词：弹力纤维瘤 计算机体层成像 发病率 

分 类 号：R739.92[医药卫生—肿瘤] R814.42[医药卫生—临床医学]