CAJ | 학술논문

目的探讨骶骨尤文肉瘤和原始神经外胚瘤的影像表现.方法回顾分析经病理证实的17例骶骨尤文肉瘤和原始神经外胚瘤的影像表现.全部患者均行X线诊断,其中13例行CT检查,10例行MR检查,分析其影像特征.结果 17例骶骨尤文肉瘤和原始神经外胚瘤均为单发偏侧性病灶.12例X线及CT表现为溶骨性骨质破坏,其中2例伴骨质硬化；l例表现为弥漫性骨质硬化性改变；11例可见盆腔软组织肿块,9例侵犯邻近的大血管,4例侵犯患侧骶髂关节,增强扫描病灶8例呈轻中度强化,5例呈明显强化.MR检查8例为T1WI中等信号,10例患者T2WI及抑脂像为不均匀中高信号；4例患者DWI序列表现为明显的高信号,增强扫描7例呈明显强化.结论骶骨尤文肉瘤和原始神经外胚瘤的影像表现具有一定特点,影像检查可为本病的临床诊断提供可靠依据.
목적 탐토저골우문육류화원시신경외배류적영상표현.방법 회고분석경병리증실적17례저골우문육류화원시신경외배류적영상표현.전부환자균행X선진단,기중13례행CT검사,10례행MR검사,분석기영상특정.결과 17례저골우문육류화원시신경외배류균위단발편측성병조.12례X선급CT표현위용골성골질파배,기중2례반골질경화；l례표현위미만성골질경화성개변；11례가견분강연조직종괴,9례침범린근적대혈관,4례침범환측저가관절,증강소묘병조8례정경중도강화,5례정명현강화.MR검사8례위T1WI중등신호,10례환자T2WI급억지상위불균균중고신호；4례환자DWI서렬표현위명현적고신호,증강소묘7례정명현강화.결론 저골우문육류화원시신경외배류적영상표현구유일정특점,영상검사가위본병적림상진단제공가고의거.
Objective To investigate the imaging features of Ewing's sarcoma and primitive neuroectodermal tumor (ES and PNET) in sacrum.Methods Imaging data were retrospectively collected and reviewed in 17 patients with ES and PNET confirmed by pathology.X-ray was performed in all patients,CT scans in 13 patients,and MR scans in 10 patients.Results All lesions were detected solitary and lateral.X-ray and CT features were lytic bone destruction in 12 cases,2 of them with bone sclerosis; one patient showed diffuse sclerosis.Soft tissue mass in pelvic cavity can be seen in 11 cases,9 of them with adjacent large blood vessels invasive and 4 patients with sacroiliac joints invasive.On post-contrast images,mild enhancement was found in 8 cases,and 5 patients with marked enhancement.MR images showed intermediate signal intensity on T1WI in 8 cases and heterogeneous moderate to high signal intensity on T2WI/fat suppression in 10 cases.DWI showed high signal intensity in 4 cases.Unlike CT scan,contrastenhanced MR images showed significant enhancement in 7 cases.Conclusions Ewing's sarcoma and primitive neuroectodermal tumor (ES and PNET) in sacrum have some specific imaging features.Imaging examination could provide reliable evidence for clinical diagnosis.