Objective:To assess the value of ultrasonography in diagnosis and differential diagnosis of parotid tumors. Methods:A retrospective analysis was done for data of ultrasonograms of 173 patients with parotid tumors confirmed by surgery and pathol-ogy. Results:Of 173 cases,there were 159 benign tumors,the conform rate was 71.1% (113/159);there were 14 malignant tum-ors,the conform rate was 71.4% (10/14). Benign tumors demonstrated regular shape and clear margin. Among the 159 benign tu-mors pleomorphic adenomas were most common,followed by adenolymphoma. While the malignant cases were showed as irregular masses with unclear margin. The most common malignant tumors were mucoepidermoid carcinoma. Our study indicated that be-tween benign and malignant tumor,the difference of the sample rate in shape,border,envelope,with liquefaction (complex cystic and solid) or calcification and color Doppler flow imaging of benign and malignant tumor were statistically significant (P<0.05). Conclusions:The high frequency color Doppler imaging is an important method in judging the characteristics of parotid tumors. But it is difficult to totally coincide with pathological diagnosis to other parotid tumors.

胃溃疡是消化道的常见疾病.发病机制不清,据说与胃酸水平有关.有报道,烟、酒、咖啡的嗜好、长期眼用阿司匹林和激素类药物、高紧张职业以及过度精神刺激等,可能为诱发胃溃疡的因素.

1 临床表现 食管癌是一种常见的恶性肿瘤,在消化道癌瘤中居首位,好发于40岁以上的人,男性多于女性,尤以北方地区较多.主要症状是进行性吞咽困难,时有胸闷和胸背痛.若肿瘤侵及喉返神经可出现声嘶.若侵破气管,形成食管气管瘘,出现进食呛咳.晚期有贫血、消瘦、恶病质等现象.

患者男,67岁.近2周尿频、尿痛来诊.查体:双肾区扣击痛阴性.超声示:膀胱内壁毛糙,后部腔内可见细小点状回声悬浮、沉积.左肾位置正常,形态饱满,大小约11.3 cm×6.0 cm×5.1 cm,实质厚约1.9 cm,中部实质区见数个点状强回声,后方无声影.

<正>干燥综合征(Sjǒgren syndrome,SS)是以侵犯外分泌腺为主、以口、眼干燥为表现特征的一种系统性结缔组织病。可分为原发性和继发性两种[1],其发病率虽较低,但可引起多个组织器官同时受累。

变态反应性支气管肺曲菌病(allergic bronchopulmonary aspergillosis)简称ABPA是一种支气管肺的免疫性疾病.其临床表现、免疫特点和X线表现国内已有报道.作者总结6例,意在探讨一下CT在诊断ABPA中的作用.

脑病脂肪肝综合征(encephalopathy liver fattymetamamorphosis syndrome)又称Reye综合征,是一种少见病,1963年Reye首先发现加以描述.笔者报告8例,侧重报告一下CT在此病的诊断价值.

典型的急性肺水肿X线表现不难诊断,但不典型的与肺炎不易鉴别.本文通过36例病例分析,以提高本病的X线诊断水平.