Objective to explore the ultrasonic characteristics and differential diagnosis of pneumobilia, and to reduce misdiagnosis and improve accurate diagnosis of pneumobilia.
目的探讨肝内胆管积气的超声图像特征及其鉴别诊断，减少误诊，提高诊断准确率。
Objective To investigate the value of transabdominal ultrasonography in differential diagnosis of gastric stromal tumor and carcinoma through comparing the ultrasonic appearances of tumors.
目的比较胃间质瘤和胃癌的经腹超声表现，探讨超声的鉴别诊断价值。
Conclusion: With the integrated usage of ultrasonic methods, higher accuracy of differential diagnosis for benign and malignant salivary glands tumors may be obtained.
结论：各种超声检查方法联合应用，可以明显提高超声对涎腺良恶性肿瘤诊断的准确性。
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