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  • Title: The variable nature of the mediastinal contour lines: CT/chest radiography correlation.
    Author: Paling MR, Pope TL.
    Journal: J Comput Tomogr; 1987 Jul; 11(3):254-60. PubMed ID: 3608550.
    Abstract:
    Interfacing of the lung with the mediastinum produces a number of mediastinal lines including those due to the innominate veins, left subclavian artery, paratracheal stripe, both anterior and posterior junction lines, the azygo-esophageal recess, descending aorta and paraspinal lines. Displacement or absence of one or more of these lines may be due to an abnormality of mediastinal contour or may indicate a mediastinal mass, but can occur in normal subjects. Correlative findings between chest radiography and chest computed tomography in 50 normal subjects illustrate the variable nature of these lines.
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