磁共振成像
磁共振成像
자공진성상
Chinese Journal of Magnetic Resonance Imaging
2015年
9期
663-668
,共6页
王培源%王霞%陈亮%王旭%夏吉凯%王滨
王培源%王霞%陳亮%王旭%夏吉凱%王濱
왕배원%왕하%진량%왕욱%하길개%왕빈
皮样囊肿%脊髓疾病%磁共振成像
皮樣囊腫%脊髓疾病%磁共振成像
피양낭종%척수질병%자공진성상
Dermoid cyst%Spinal cord diseases%Magnetic resonance imaging
目的:探讨椎管内表皮样囊肿的临床表现特点及MRI诊断价值。材料与方法回顾性分析经手术病理证实的27例(男15例,女12例)椎管内表皮样囊肿的临床及影像资料,重点分析其X线表现及MRI特点。结果主要临床表现为单侧或双侧下肢疼痛、麻木无力或肌力减退。病变部位为骶尾段13、腰骶椎交界区4例,腰段7例,胸腰椎交界区3例。位于髓外硬膜下23例,脊髓内4例。病变长度2.7~9.0 cm不等,长轴与椎管方向一致。T1WI示8例呈均匀低信号,14例呈等低混杂信号,5例呈高低混杂信号。T2WI 6例呈均匀高信号,21例呈等高混杂信号;增强扫描,4例病变周围见不规则环形或线状强化。16例患者合并发育性骨质异常。结论椎管内表皮样囊肿以先天性多见,多伴有其它先天性发育畸形;X线检查可以发现并存的骨质异常,MRI表现具有特征性,对病变诊断及鉴别诊断有重要价值。
目的:探討椎管內錶皮樣囊腫的臨床錶現特點及MRI診斷價值。材料與方法迴顧性分析經手術病理證實的27例(男15例,女12例)椎管內錶皮樣囊腫的臨床及影像資料,重點分析其X線錶現及MRI特點。結果主要臨床錶現為單側或雙側下肢疼痛、痳木無力或肌力減退。病變部位為骶尾段13、腰骶椎交界區4例,腰段7例,胸腰椎交界區3例。位于髓外硬膜下23例,脊髓內4例。病變長度2.7~9.0 cm不等,長軸與椎管方嚮一緻。T1WI示8例呈均勻低信號,14例呈等低混雜信號,5例呈高低混雜信號。T2WI 6例呈均勻高信號,21例呈等高混雜信號;增彊掃描,4例病變週圍見不規則環形或線狀彊化。16例患者閤併髮育性骨質異常。結論椎管內錶皮樣囊腫以先天性多見,多伴有其它先天性髮育畸形;X線檢查可以髮現併存的骨質異常,MRI錶現具有特徵性,對病變診斷及鑒彆診斷有重要價值。
목적:탐토추관내표피양낭종적림상표현특점급MRI진단개치。재료여방법회고성분석경수술병리증실적27례(남15례,녀12례)추관내표피양낭종적림상급영상자료,중점분석기X선표현급MRI특점。결과주요림상표현위단측혹쌍측하지동통、마목무력혹기력감퇴。병변부위위저미단13、요저추교계구4례,요단7례,흉요추교계구3례。위우수외경막하23례,척수내4례。병변장도2.7~9.0 cm불등,장축여추관방향일치。T1WI시8례정균균저신호,14례정등저혼잡신호,5례정고저혼잡신호。T2WI 6례정균균고신호,21례정등고혼잡신호;증강소묘,4례병변주위견불규칙배형혹선상강화。16례환자합병발육성골질이상。결론추관내표피양낭종이선천성다견,다반유기타선천성발육기형;X선검사가이발현병존적골질이상,MRI표현구유특정성,대병변진단급감별진단유중요개치。
Objective: To discuss the clinical characteristics and MRI diagnostic value of intraspinal epidermoid cyst. Materials and Methods:Twenty-seven cases (male 15 cases, female 12 cases) intraspinal epidermoid cyst with complete clinical and imaging data were diagnosed retrospectively, which confirmed by surgery and pathology. Results:The major clinical manifestations were unilateral or bilateral lower lamb pain, numbness weakness or strength decreased. Location of lesions were 13 in sacrococcygeal region, 4 in lumbosacral vertebral border area, 7 in lumbar segments, and 3 in thoracolumbar border area. Twenty-three lesions were in subdural space, and 4 in the spinal cord. The length of lesions was 2.7—9.0 cm, and the long axis was consistent with the spinal canal. On MRI, 8 cases showed uniformity hypo-intensity, 14 cases showed iso-/hypo-intensity, and 5 cases showed hyper-/hypo-intensity in T1WI. And 6 cases showed uniformity hyper-intensity, 21 cases showed iso-/hyper-intensity in T2WI. In contrast enhancement, only 4 cases showed irregular circular or linear peripheral enhancement. Sixteen cases complicated with other congenital bone deformation. Conclusions:The intraspinal epidermoid cyst most likely occurred congenitally, and often complicated with other congenital developmental malformation, which can be observed by X-ray photography. The intraspinal epidermoid cyst has characteristic MRI findings, which play an important role in its diagnosis and differential diagnosis.