CAJ | 학술논문

目的：探讨纵隔孤立性纤维性肿瘤的 CT 表现,分析影像学误诊的原因。方法回顾性分析经手术病理证实的5例纵隔孤立性纤维性肿瘤的 CT 表现,全部病例术前 CT 检查均误诊。结果5例中,3个肿块主体位于右侧纵隔内,呈椭圆形,边缘清晰,可见“胸膜尾征”；2个病灶主体位于右侧胸腔内,边缘不清,压迫邻近肺组织；肿瘤直径8.6~15 cm,中位数为11.5 cm；密度不均匀,CT 增强后肿块呈不均匀、“地图”样强化。结论 CT 能明确纵隔孤立性纤维性肿瘤的大小、形态及邻近结构,确诊仍依赖于病理学及免疫组化检查；对本病缺乏足够认识是术前误诊的主要原因。
목적：탐토종격고립성섬유성종류적 CT 표현,분석영상학오진적원인。방법회고성분석경수술병리증실적5례종격고립성섬유성종류적 CT 표현,전부병례술전 CT 검사균오진。결과5례중,3개종괴주체위우우측종격내,정타원형,변연청석,가견“흉막미정”；2개병조주체위우우측흉강내,변연불청,압박린근폐조직；종류직경8.6~15 cm,중위수위11.5 cm；밀도불균균,CT 증강후종괴정불균균、“지도”양강화。결론 CT 능명학종격고립성섬유성종류적대소、형태급린근결구,학진잉의뢰우병이학급면역조화검사；대본병결핍족구인식시술전오진적주요원인。
Objective To investigate CT features of solitary fibrous tumor of the mediastinum(SFTM),and to analyze the causes of misdiagnosis of this disease.Methods CT features of 5 patients of SFTM confirmed operatively and pathologically were retrospec-tively analyzed.All patients underwent before operation but were misdiagnosed.Results 3 cases were located in right mediastinum with oval-shap,well-defined margin,and “pleural tail sign”,2 cases were located in right thoracis cavity with unwell-defined margin, and in the adjacent lung were oppressed.In all 5 patients,the mean median of tumors was 1 1.5 cm(8.6-1 5 cm),non-homogeneous density of tumors were seen on plain CT scans,and obvious non-homogeneous enhancement with“geographic pattern”on contrast-en-hanced CT.Conclusion CT can clearly reveal the size and the appearance of SFTM,adjacent architectures,the final diagnosis de-pends on histopathological and immunohistochemical findings of the tumors.To un-know is the main caused of misdiagnosis of medi-astinal SFT.