What is the meaning of Reticulonodular opacities?
Reticulonodular. A reticulonodular interstitial pattern is produced by either overlap of reticular shadows or by the presence of reticular shadowing and pulmonary nodules. While this is a relatively common appearance on a chest radiograph, very few diseases are confirmed to show this pattern pathologically.
What does opacities of the lungs mean?
Pulmonary opacification represents the result of a decrease in the ratio of gas to soft tissue (blood, lung parenchyma and stroma) in the lung. When reviewing an area of increased attenuation (opacification) on a chest radiograph or CT it is vital to determine where the opacification is.
What are the reticular opacities of diffuse lung disease?
Reticular opacities seen on HRCT in patients with diffuse lung disease can indicate lung infiltration with interstitial thickening or fibrosis. Three principal patterns of reticulation may be seen. These are interlobular septal thickening, honeycombing, and irregular reticulation. INTERLOBULAR SEPTAL THICKENING.
What causes an irregular pattern of reticular opacities?
Intralobular interstitial thickening results in an irregular reticular pattern smaller in scale than the reticular pattern of interlobular septal thickening. The presence of a few thickened interlobular septa can be seen in a wide variety of diffuse lung diseases and is, in general, a nonspecific finding.
Where are the TIB opacities in the chest?
There are small clusters of TIB opacities (black arrows) in the right upper lobe, right middle lobe, and lingula; mild bronchiolectasis (white arrows) in the right upper lobe; and normal intervening lung. C and D, A 57-year-old woman with chronic cough, fever and dyspnea.
What are the risk factors for bronchiectasis?
People with the following conditions are considered to have risk factors for bronchiectasis: Cystic fibrosis. Chronic and inflammatory lung disease. Chronic or severe lung infections, like tuberculosis, non-tuberculous mycobacteria (NTM) or pneumonia.