涎腺疾病灰阶超声诊断

目的 探讨灰阶超声对涎腺疾病的诊断价值，分析各类疾病的声像图特点。方法 回顾分析54例经病理证实的涎腺疾病的灰阶超声声像图。结果 灰阶超声鉴别涎腺囊、实性病变准确性较高，囊肿诊断准确率100％；混合瘤和腺淋巴瘤可根据肿块形态，内部及后方回声，病灶个数等方面进行鉴别；恶性肿瘤的声像图与良性肿瘤比较，缺乏一定特征，鉴别尚有一定困难，结合临床资料有一定帮助。涎腺弥漫性炎症根据腺体内部回声及肿块无明显边界诊断容易，涎腺导管结石诊断可靠。涎腺淋巴结炎症或结核为多发、边界清晰的低回声光团。结论 灰阶超声对良性病变有较好的鉴别价值，对良、恶性肿瘤鉴别尚有一定困难，结合临床表现有助超诊断。

Gray - scale ultrasound in diagnosis of salivary disease

Purpose To evaluate the value of gray-scale ultrasound in diagnosis of salivary disease. Methods 54 cases of salivary gland disease with ultrasound and pathology results were retrospectively studied. Results Gray-scale ultrasound could accurately differentiate solid and liquid lesion. Cysts were 100% correctly diagnosed. Salivary pleomorphic adenoma and adenolymphoma could be differentiated with shape, echo (inside and behide) and number of lesions. Image of bengin and malignant tumor had no notable difference, Clinical material might be helpful. Diffused inflammation could be easily diagnosed through echo of salivary and lesion without brim. Diagnosis of salivolithiasis were accurate. Lymph node represented as multiple, hypo-echoic lesion with clear margin. Conclusion Grayscale ultrasound can differentiate benign lesion with moderate accuracy. Differentiation of benign and malignant tumors is difficult. Clinical symptom can help the diagnosis of ultrasound.