Comparison on CT manifestations of pneumonic-type lung cancer and exudation-predominant pulmonary tuberculosis
10.13929/j.issn.1003-3289.2020.06.010
- VernacularTitle: 对比观察炎性肺癌与渗出为主型肺结核CT表现
- Author:
Chaohao MA
1
Author Information
1. Department of Radiology, The First Affiliated Hospital of Chongqing Medical University
- Publication Type:Journal Article
- Keywords:
Lung neoplasms;
Tomography, X-ray computed;
Tuberculosis, pulmonary
- From:
Chinese Journal of Medical Imaging Technology
2020;36(6):849-852
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To comparatively analyze CT manifestations of pneumonic-type lung cancer and exudation-predominant pulmonary tuberculosis. Methods: CT data of 84 patients with pneumonic-type lung cancer (lung cancer group) and 93 with exudation-predominant pulmonary tuberculosis (tuberculosis group) were retrospectively analyzed. CT manifestations were compared between 2 groups, including the number of consolidation shadows, distribution of single consolidation shadows, density of consolidation shadows, internal air bronchogram and air lacunae in consolidation shadows, ground-glass opacity (GGO) around consolidation shadows, accompanying nodule shadows, pleural effusion as well as swelling and calcification of mediastinal lymph nodes. Results: No statistical difference of the number of consolidation shadows was observed between 2 groups (χ2=0.30, P>0.05). In tuberculosis group, distribution of single consolidation shadow in both lungs was similar and in upper lobe was common, while in lung cancer group, distribution in right lung and lower lobe were common. There was no statistical difference of air bronchogram between groups (χ2=0.33, P>0.05). Wither-stick type of air bronchogram was often observed in lung cancer group, while green-stick type was commonly found in tuberculosis group (χ2=24.67, P<0.05). The incidence of air lacunae in tuberculosis group was higher than in lung cancer group (χ2=10.13, P<0.05), and septation within air lacunae was more common in lung cancer group than in tuberculosis group (χ2=22.42, P<0.05). Compared with tuberculosis group, lung cancer group had more uneven density of lesions and more GGO around consolidation shadows (χ2=5.27, 20.43, P<0.05) but less accompanying nodules (χ2=4.53, P<0.05). Conclusion: CT manifestations of pneumonic-type lung cancer and exudation-predominant pulmonary tuberculosis are different to some extent. Heterogeneous consolidation with wither-stick type of air bronchogram and segregated air-containing space combined with GGO around highly suggest pneumonic-type lung cancer.
