论文部分内容阅读
目的评价良性、恶性胸腔积液的CT特征性表现。方法回顾性分析38例恶性胸积液和56例良性胸腔积液的CT征象。结果良性胸腔积液中,双侧41.1%,胸膜增厚19.6%,弥漫均匀增厚l9.6,纵隔胸膜受累10.7%,胸膜外脂肪层明确显示71.4%厚度>3mm,41.1%平均厚度5.7mm;恶性胸积液中双侧l5.8%,胸膜增厚57.9%,主要弥漫不规则增厚或局部增厚,纵隔胸膜增厚占36.8%;胸膜外脂肪层明确显示占60.5%,其中厚度>3mnm占26.3%,平均2.9mm。结论单侧、大量积液且张力高,胸膜不规则增厚,纵隔胸膜受累对恶性诊断有特异性;而胸膜无或轻度弥漫规则增厚,胸膜外脂肪层增厚多提示良性。
Objective To evaluate the CT features of benign and malignant pleural effusions. Methods The CT findings of 38 cases of malignant pleural effusion and 56 cases of benign pleural effusion were retrospectively analyzed. Results In benign pleural effusion, the bilateral pleural effusion was 41.1%, the thickened pleura was 19.6%, the thickened diffuse l9.6, the mediastinal pleura was 10.7%, the extrapulmonary fat layer was 71.4%, the thickness was 3mm, and the average thickness of 41.1% was 5.7mm ; Malignant pleural effusion in both l5.8%, pleural thickening of 57.9%, mainly diffuse irregular thickening or local thickening, mediastinal pleural thickening accounted for 36.8%; pleural fat layer clearly accounted for 60.5% of which thickness > 3mnm accounted for 26.3%, an average of 2.9mm. Conclusions Unilateral, massive effusion and high tension, pleural irregular thickening, mediastinal pleural involvement of the specificity of the diagnosis of malignancy; and pleural no or mild diffuse rules thickening, extrapleural fat layer thickening more than suggest benign.