论文部分内容阅读
目的：探讨小儿纵隔肿瘤超声影像学特点及超声的诊断价值。方法：采用超声仪探查２３例患儿病变区的位置、大小形态和内部回声情况，并将结果与手术及病理发现相比较。结果：本组超声诊断符合率９５％。发生在后纵隔的以神经源性肿瘤最常见，发生在前纵隔和中纵隔最多见的肿瘤是畸胎瘤及淋巴管瘤。良性肿瘤边界清楚，内部回声较均质。恶性肿瘤边界模糊，内部以低回声或混合回声为主，常伴有胸腔积液或心包腔积液。结论：超声有利于直接观察纵隔肿瘤内部结构的性质及肿瘤的位置关系，能为临床诊断提供可靠的图像依据，超声引导下针吸活检有助于确定肿瘤的病理类型。
Objective: To investigate the ultrasound imaging characteristics of pediatric mediastinal tumors and the diagnostic value of ultrasound. Methods: Ultrasound was used to investigate the location, size, shape and internal echo of the lesions in 23 children. The results were compared with the findings of surgery and pathology. Results: The diagnostic accuracy of this group was 95%. Neurogenic tumors that occur in the posterior mediastinum are the most common tumors that occur most commonly in the anterior and medial mediastinum as teratomas and lymphangiomas. Clear boundary of benign tumor, the internal echo is more homogeneous. Malignant tumor boundaries blurred internal echo or mixed echo-based, often accompanied by pleural effusion or pericardial effusion. Conclusion: Ultrasound is helpful for directly observing the nature of the internal structure of the mediastinal tumor and the location of the tumor. It can provide a reliable basis for clinical diagnosis. Ultrasound-guided needle aspiration biopsy can help determine the pathological type of the tumor.