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Computed tomography features of acute pulmonary tuberculosis
Chao-Jung Wei1, Chui-Mei Tiu, Jen-Dar Chen
1Department of Radiology, Taipei Veterans General Hospital and College of medicine, National Yang-Ming University, Taipei, Taiwan. cmtiu@vghtpe.gov.tw
The American Journal of Emergency Medicine
|May 13, 2004
Summary
Computed tomography (CT) effectively identifies pulmonary tuberculosis (TB) features in patients with acute symptoms. Early detection of TB is aided by recognizing multifocal consolidation and cavitary nodules on CT scans.
Area of Science:
- Radiology
- Infectious Diseases
- Pulmonology
Background:
- Pulmonary tuberculosis (TB) can present with acute clinical symptoms, posing diagnostic challenges.
- Computed tomography (CT) is a valuable imaging modality for evaluating thoracic abnormalities.
Purpose of the Study:
- To elucidate the characteristic CT findings of pulmonary tuberculosis in patients presenting with acute clinical manifestations.
- To correlate CT features with clinical outcomes in acute pulmonary TB.
Main Methods:
- Retrospective analysis of emergent CT scans from 46 non-AIDS patients diagnosed with acute pulmonary TB.
- Detailed evaluation of the distribution and characteristics of pulmonary and pleural lesions on CT.
- Assessment of clinical follow-up data, including the development of acute respiratory failure.
Main Results:
- Multifocal airspace consolidation in multiple lobes was the most frequent CT finding (70%).
- Cavitary pulmonary nodular shadows were observed in 50% of patients.
- Other significant CT findings included pleural effusion (40%), TB empyema (20%), and lymphadenopathy (11%).
- Acute respiratory failure developed in 26% of patients during follow-up.
Conclusions:
- CT imaging reveals distinct features in acute pulmonary tuberculosis, notably multifocal consolidation and nodular lesions.
- Prompt recognition of these CT findings can facilitate early diagnosis and workup for pulmonary TB.
- Early detection through CT analysis may contribute to timely management and potentially prevent complications like respiratory failure.