肺炎性假瘤的X线、CT和MRI诊断价值

Diagnostic value of inflammatory pseudotumor of the X-ray,CT and MRI

目的:探讨X线、CT和MRI影像学对肺炎性假瘤的诊断价值。方法:收集本院经手术及病理证实的48例肺炎性假瘤,回顾分析他们的X线、CT和MRI影像学表现及其临床表现。结果:①肿块多位于肺的外围,贴近胸膜,伴邻近胸膜增厚粘连,直径大小以3～5cm最多。较具特征性是肿物呈"桃尖征";②瘤体多数呈椭圆形或可呈楔形或方形,一侧边缘平直;③病灶密度均匀或欠均匀,边缘清楚;④病灶边缘粗长毛刺,病灶内可有低密度坏死区及小点状钙化灶;⑤MRISET1WI及T2WI像肿块可表现为较肌肉高信号或稍高信号,部分信号不均。诊断炎性假瘤24例,肺癌14例,结核球10例,诊断率为50%。结论:通过将X线、CT及MRI这3种检查手段相互结合,并紧密结合临床资料有助于提高本病诊断的准确性。

Objective：To explore the X-ray,CT and MRI imaging for pneumonia false tumor diagnostic value.Methods：Collected by surgery and pathology confirmed our 48 cases of pneumonia false tumor in our Hospital,reviewed their X-ray,CT and MRI imaging manifestations and clinical performance.Results：①In the lung periphery mass more,close to the pleural,with adjacent pleural thickening adhesions diameter size 3-5 cm most.A mass with a ＂peach characteristic＂ was pointed;②Most elliptic form a tumors or could show cuneate or square,a side edge straight;③ The density or owe uniform lesions,edge clear;④Thick long burr,lesions edge lesions may had low density within necrotic area and small pointlike calcification;⑤T1WI and T2WI like MRI SE made manifest as a muscle mass high signal or slightly high signal.The diagnosis inflammatory pseudotumor were 24 cases,lung cancer were 14 cases,tuberculoma were 10 cases,the diagnosis rate was 50%.Conclusion：Through the X-ray,CT and MRI combined the three tests,and closely combining the clinical data help to improve the diagnostic accuracy of this disease.