动脉瘤样骨囊肿的影像和病理学表现

目的:分析动脉瘤样骨囊肿(aneuriysmal bone cyst,ABC)的影像学及病理学特点,以期提高ABC的诊断水平。方法:回顾性分析32例经病理证实的动脉瘤样骨囊肿的影像学表现,全部病例中行X线检查20例,行CT检查17例,行MRI检查14例,部分患者在X线检查后进行了CT或MRI检查。结果:病灶分布于四肢长骨18例,脊椎8例、骨盆4例、下颌骨1例、跟骨1例;在X线和CT表现为上ABC表现为偏心性和膨胀性骨质破坏,MRI表现为多囊性病灶,T1WI呈低信号,T2WI呈高信号;病理均表现为含血囊腔及结缔组织性的间隔。结论:动脉瘤样骨囊肿有其特征性影像学表现,普通X线检查是最基本的首选检查方法,CT和MRI在显示动脉瘤样骨囊肿病灶内部结构和鉴别诊断上具有优势,综合影像学检查能提高动脉瘤样骨囊肿诊断符合率。

The pathological and imaging features of aneuriysmal bone cyst

Objective:To analysis the pathological and imaging features of aneuriysmal bone cyst(ABC),and improve the diagnostic level in this disease.Methods:32 cases of imaging data with pathologically proved ABC were retrospectively analyzed,imaging materials included ordinary X-ray photographs(n=20),CT scans(n=17)and MRI(n=14),some cases were examined by both scan of CT or MRI after X-ray examination.Results:Of all cases,the lesion was locate at long bones in 18,and at vertebra in 8,at pelvic in 4,each cases at man...