大网膜病变的超声表现

目的评价大网膜病变的超声诊断价值。积累大网膜病变的超声诊断经验。方法回顾性分析经病理学证实或临床治疗观察确诊的152例大网膜病变的超声改变。结果病变大网膜的声像图特征：急性炎症多表现为增厚大网膜边缘锐利、清晰,内部回声略增强,原发性炎症仅与壁层腹膜粘连,继发性炎症邻近原发病灶。原发性肿瘤多表现为椭圆形或分叶状不均匀低回声肿块。结核性增厚的大网膜多呈饼状,回声高低间杂。转移性大网膜增厚多呈不规则结节状,回声中等或较低,并伴有低回声结节,CDFI能显示结节内血流信号。结论超声医师能够根据大网膜改变的声像图特点,判定大部分病变的性质。当不能确定时,可在超声引导下穿刺活检确认。

Ultrasonographic Features of Great Omentum Diseases

Objective To evaluate the value of ultrasonographic findings in great omentum diseases,and to improve the diagnostic experience.Methods The ultrasonic findings were studied in 152 patients with great omentum diseases diagnosed by operation,celioscope,ultrasonogrophic guided puncture biopsy,ascitic cytology or clinical observation.Results Ultrasonographic features of great omentum diseases were as follows:in acute inflammation,the thickned omental border was sharp,clear with a little hyperechoic strong echogeniey.Primary inflammation simply showed adhesion with peritoneum,and secondary inflammation showed adjacent to the primary focus.Oval or lobulated heterogeneous hypoechoes were the diagnostic features of primary omental tumors.Internal echoes were caky and hyper-hypoechic interlocking in great omental tuberculosis.Metastatic tumors presented irregular thick great omentum with median or low hypoechoic nodules in which blood signals revealed on CDFI.Conclusions Ultrasonographic doctors may estimate properties of most great omentum diseases based on these features.Ultrasound guided puncture biopsy may be necessary in some difficult conditions.