|
KMID : 1103720130680060463
|
|
Journal of the Korean Society of Radiology
2013 Volume.68 No. 6 p.463 ~ p.472
|
|
|
Characteristics of Consolidation;Centrilobular Nodule and Bronchus as CT Findings for the Differentiation between Tuberculosis and Pneumonia
|
|
Ko Se-Young
Chung Myung-Hee
Lim Yeon-Soo
Lim Hyun-Wook
Sung Mi-Sook
Kahng Ji-Min
Lee Bae-Young
|
|
|
Abstract
|
|
|
|
Purpose: To differentiate tuberculosis from pneumonia by computed tomography (CT) in cases difficult to diagnose clinically and radiologically. Materials and Methods: CT scans of 300 patients with tuberculosis and 234 pa- tients with pneumonia were retrospectively analyzed. Parenchymal abnormalities, lymph nodes, pleural effusions and central bronchial narrowing were evaluated. The density of consolidation was measured by pre- and post-enhanced CT. Results: Centrilobular nodules, granulomas, cavitations in both nodules as well as consolidation, conglomerated nodules, and enlarged lymph nodes occurred with sig- nificantly greater frequency in patients with tuberculosis than in those with pneumo- nia. Centrilobular nodules were larger and denser in tuberculosis patients. In consol- idation, decreases in lung lobe volume and a bronchial beaded appearance (irregular narrowing and dilatation) were more frequent in patients with tuberculosis. The tu- berculous consolidation had significantly lower mean enhancement and net en- hancement than that from pneumonia. When the diagnostic criteria for tuberculo- sis were set as well-demarcated larger centrilobular nodules and/or a lowerly enhancing consolidation with internal beaded bronchi, the diagnostic accuracy was found to be 82.0%. Conclusion: Consolidation with a low level of enhancement, decreased lung lobe volume, and bronchi with irregular, beaded shape and denser and larger centrilobu- lar nodules are helpful CT findings for the diagnosis of tuberculosis.
|
|
|
KEYWORD
|
|
|
Tuberculosis, Pneumonia, CT , Differentiation
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
  
|
|