|
Code
|
Display
|
Definition
|
|
112150
|
Linear |
A shadow resembling a line; any elongated opacity of approximately uniform width [Fraser and Pare]. |
|
112151
|
Profusion |
The number of small opacities per unit area or zone of lung. In the International Labor Organization (ILO) classification of radiographs of the pneumoconioses, the qualifiers 0 through 3 subdivide the profusion into 4 categories. The profusion categories may be further subdivided by employing a 12-point scale [Fraser and Pare]. |
|
112152
|
Silhouette sign |
The effacement of an anatomic soft tissue border by either a normal anatomic structure or a pathologic state such as airlessness of adjacent lung or accumulation of fluid in the contiguous pleural space; useful in detecting and localizing an opacity along the axis of the X-Ray beam [Fraser and Pare]. |
|
112146
|
Acinar |
A pulmonary opacity 4-8 mm in diameter, presumed to represent anatomic acinus, or a collection of opacities in the lung, each measuring 4-8 mm in diameter, and together producing an extended, homogeneous shadow [Fraser and Pare]. |
|
112147
|
Air space |
The gas-containing portion of the lung parenchyma, including the acini and excluding the interstitium [Fraser and Pare]. |
|
112148
|
Fibronodular |
Sharply defined, approximately circular opacities occurring singly or in clusters, usually in the upper lobes [Fraser and Pare]. |
|
112149
|
Fluffy |
A shadow (opacity) that is ill-defined, lacking clear-cut margins [Fraser and Pare]. |