不典型肺结核CT诊断

分析不典型肺结核CT表现,并探讨其CT诊断价值.材料和方法:回顾性分析不典型肺结核63例,所有病例均得到证实,CT扫描包括常规层厚和薄层扫描或HRCT扫描,52例行增强扫描.结果:不典型CT表现有6种,粟粒性病变缺乏临床症状8例,肺炎实变型16例,磨玻璃密度阴影4例,气管支气管结核20例,结节或肿块9例,纵隔淋巴结结核6例.结核诊断率39.7%(25例),误为肿瘤19.0%(12例).结论:不典型肺结核CT表现多样,类似肺炎和肺癌,多数诊断困难.

CT Diagnosis of Atypical Pulmonary Tuberculosis

Purpose: To analyze the CT features of atypical pulmonary tuberculosis and determine its value. Materials and Methods: Sixty - three documented patients with atypical pulmonary tuberculosis were reviewed retrospectively. HRCT or thin slice CT combined helical CT was performed, and enhanced CT was of 52 patients. Results: The atypical CT findings were classified into 6 types: military tuberculosis avoid of clinical manifestation(n = 8); pneumonia - like consolidation ( n = 16); ground - glass opacity (w = 4); tracheobronchial tuberculosis (n = 20); nodule or mass(n = 5); and mediastinal lymph node tuberculosis(n = 6). The correct diagnoses were made in 25 patients (39.7%). But 12 cases(19.0% ) were misdiagnosed as pulmonary carcinoma.Conclusion: The CT diagnosis of the atypical pulmonary tuberculosis would be difficult because of the variable features and mimicking pneumonia and lung cancer.