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目的:分析成人腮腺肿块超声影像的病理基础及超声对于腮腺肿块的定性诊断价值。方法:对我院收治的50例成人100个腮腺进行B超探测,使用ALOKASSD—250型实时线阵超声显像仪,频率为5MH_2。采用间接探查法,受检者取仰卧位,头侧向一方,或取侧卧位,局部涂耦合剂加一水囊,声束通过水囊,置于外耳道孔前下方先做纵行扫查并移动探头测量其最大上下径,然后旋转探头180°,在耳垂与同侧人中穴连线做检查。结果:其中,腮腺良性病变40例,腮腺非占位性病变5例,腮腺恶性肿瘤2例,超声显示为占位性病变、但临床和病理均未见肿块的病例3例。局限性病变分为“良性肿瘤”、“恶性肿瘤”、“囊性病变”和“其他非肿瘤性病变”四组。结论:超声在判断病变是否为局限性时的灵敏度和阳性预测值很高,且可以较方便地识别囊性病变。不同的影像指标在不同性质疾病中的分布有一定的规律,可提示临床按照一定的程序有组合地进行鉴别诊断。
OBJECTIVE: To analyze the pathological basis of adult parotid ultrasound image and the value of ultrasound in the diagnosis of parotid mass. Methods: A total of 100 parotid glands of 50 adults admitted to our hospital were examined by B-mode sonography. The ALOKASSD-250 real-time linear ultrasonic imaging system was used with a frequency of 5MH_2. Indirect probing method, the subjects were supine position, head side to one side, or to take the lateral position, the local coated coupling agent plus a water sac, the sound beam through the water sac, placed in front of the external auditory meatus before the first longitudinal scan And move the probe to measure its maximum diameter, and then rotate the probe 180 °, lobe and ipsilateral people in the cave connection check. Results: Among them, 40 cases of parotid benign lesions, 5 cases of non-parotid parotid lesions, 2 cases of parotid malignancies, ultrasound showed space-occupying lesions, but no clinical and pathological cases of tumor in 3 cases. Limitations of lesions are divided into “benign tumor ”, “malignant tumor ”, “cystic lesions ” and “other non-neoplastic lesions ” four groups. Conclusion: The sensitivity and positive predictive value of ultrasound in determining whether the lesions are localized are high, and cystic lesions can be more easily identified. Different imaging indicators in different types of diseases in the distribution of a certain regularity, can prompt the clinical in accordance with certain procedures in combination for differential diagnosis.