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Code
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Display
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Definition
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112065
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Reticulonodular pattern |
A collection of innumerable small, linear, and nodular opacities that together produce a composite appearance resembling a net with small superimposed nodules. The reticular and nodular elements are dimensionally of similar magnitude [Fraser and Pare]. |
|
112110
|
Kerley B line |
A straight linear opacity 1.5-2 cm in length and 1-2 mm in width, usually at the lung base [Fraser and Pare]. |
|
112111
|
Kerley C lines |
A group of branching, linear opacities producing the appearing of a fine net, at the lung base [Fraser and Pare]. |
|
112112
|
Parenchymal band |
Elongated opacity, usually several millimeters wide and up to about 5 cm long, often extending to the pleura, which may be thickened and retracted at the site of contact [Fraser and Pare]. |
|
112113
|
Reticular pattern |
A collection of innumerable small linear opacities that together produce an appearance resembling a net [Fraser and Pare]. |
|
112114
|
Septal line(s) |
Usually used in the plural, a generic term for linear opacities of varied distribution produced when the interstitium between pulmonary lobules is thickened [Fraser and Pare]. |
|
112104
|
Air-fluid level |
A local collection of gas and liquid that, when traversed by a horizontal X-Ray beam, creates a shadow characterized by a sharp horizontal interface between gas density above and liquid density below [Fraser and Pare]. |
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112115
|
Subpleural line |
A thin curvilinear opacity, a few millimeters or less in thickness, usually less than 1 cm from the pleural surface and paralleling the pleura [Fraser and Pare]. |
|
112105
|
Corona radiata |
A circumferential pattern of fine linear spicules, approximately 5 mm long, extending outward from the margin of a solitary pulmonary nodule through a zone of relative lucency [Fraser and Pare]. |
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112116
|
Tramline shadow |
Parallel or slightly convergent linear opacities that suggest the planar projection of tubular structures and that correspond in location and orientation to elements of the bronchial tree [Fraser and Pare]. |
|
112106
|
Honeycomb pattern |
A number of closely approximated ring shadows representing air spaces 5-10 mm in diameter with walls 2-3 mm thick that resemble a true honeycomb; implies "end-stage" lung [Fraser and Pare]. |
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112117
|
Tubular shadow |
Paired, parallel, or slightly convergent linear opacities presumed to represent the walls of a tubular structure seen en face; used if the anatomic nature of a shadow is obscure [Fraser and Pare]. |
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112107
|
Fleischner's line(s) |
A straight, curved, or irregular linear opacity that is visible in multiple projections; usually situated in the lower half of the lung; vary markedly in length and width [Fraser and Pare]. |
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112108
|
Intralobular lines |
Fine linear opacities present in a lobule when the intralobular interstitium is thickened. When numerous, they may appear as a fine reticular pattern [Fraser and Pare]. |
|
112109
|
Kerley A line |
Essentially straight linear opacity 2-6 cm in length and 1-3 mm in width, usually in an upper lung zone [Fraser and Pare]. |