心包囊肿的影像学诊断(附38例报告)

Imaging of the Pericardial Cyst (Report in 38 Cases)

目的 总结纵隔心包囊肿的影像学特征。方法 本文报告经手术与病理证实的心包囊肿 38例。全部病例均有完备的X线资料 ,其中行CT检查 15例 ,MRI检查 2例 ,超声检查 10例。结果 病变发生在右心膈角区占 5 5 .3% ,左心膈角区 31.6 % ,余者位置不典型。圆形和椭圆形 78.9% ,不规则形 2 1.1%。边缘光滑整齐 76 .3% ,不整齐2 3.7%。密度均匀 94.7% ,有钙化者 5 .3%。囊肿的CT值为 0～ 18Hu ,钙化处高达 12 8Hu。MRI见囊肿T1WI为低信号 ,T2WI为高信号 ,其包膜显示清楚。B超见其为有包膜的含液囊性肿物。结论 心包囊肿具有典型的影像学特征 ,综合应用各种影像学方法 ,结合临床可做出正确诊断。

Objective To study the imaging characters of pericardial cysts. Methods 38 cases with pericardial cyst confirmed by operation and pathology were reported. There were X ray materials in all of the patients, CT in 15 cases, MRI in 2 cases, Ultrasound (US) in 10 cases. Results The lesions located in right cardial phrenic angle 53.3%,left cardial phrenic angle 31.6%.Round and oval shape 78.9%, irregular shape 21.1%; smooth outline 76.3%, irregular 23.7%; homogeneous density 94.7%, with calcification 5.3%. The CT value was 0～18Hu,calcification 128Hu. MRI showed lower intense signal in T1WI and super intense in T2WI with the capsular were clear .US showed typical imaging features of cyst including fluid. Conclusion Pericardial cyst has typical imaging characters, it was suggested that correct diagnosis can be made through combing different imaging procedures with clinical findings. [