Document Detail

Partial obliteration or blurring of the descending aortic contours: a pitfall on plain chest radiographs.
MedLine Citation:
PMID:  8403767     Owner:  NLM     Status:  MEDLINE    
We report the cause and clinical significance of partial obliteration or blurring of the descending aortic contour on the frontal chest radiographs of patients without pathology in the vicinity of the descending aorta. Among 112 cases, 26 cases (23.2%) showed obliteration or blurring of the contour (positive group). On the corresponding computed tomograph of the positive group, two dominant causes were shown. One was contact between the descending aorta and the left hilar or lower lobe vessels. The second was the adjacent pleura being obliquely orientated to the anteroposterior (A-P) axis. In the latter group, on the lateral chest radiographs, a flattened thorax with a smaller A-P diameter was seen. Identification of left hilar or lower lobe vessels on a frontal chest radiograph or a diminished A-P diameter of the thorax on a lateral radiograph is useful in differentiating these circumstances from true thoracic pathology.
T Okawada; M Takahashi; T Masui; Y Miyazaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical radiology     Volume:  48     ISSN:  0009-9260     ISO Abbreviation:  Clin Radiol     Publication Date:  1993 Sep 
Date Detail:
Created Date:  1993-11-16     Completed Date:  1993-11-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  1306016     Medline TA:  Clin Radiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  192-6     Citation Subset:  IM    
Department of Radiology, Hamamatsu University School of Medicine, Japan.
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MeSH Terms
Aged, 80 and over
Aging / pathology
Aorta, Thoracic / pathology,  radiography*
Middle Aged
Radiography, Thoracic
Tomography, X-Ray Computed

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