What causes Reticulonodular infiltrates?
The differential diagnosis of diffuse, coarse, reticulonodular pulmonary infiltrates includes collagen vascular diseases such as rheumatoid lung and scleroderma, Gaucher’s disease, drug sensitivity from nitrofurantoin, busulfan, and bleomycin, and inhalation exposure such as silo filler’s disease, silicosis, and …
What is Reticulonodular infiltration?
A reticulonodular interstitial pattern is an imaging descriptive term that can be used in thoracic radiographs or CT scans when are there is an overlap of reticular shadows with nodular shadows. This may be used to describe a regional pattern or a diffuse pattern throughout the lungs.
What are the radiographic appearances of a pneumothorax?
Finding of pneumothorax on chest radiographs may include the following: A linear shadow of visceral pleura with lack of lung markings peripheral to the shadow may be observed, indicating collapsed lung. An ipsilateral lung edge may be seen parallel to the chest wall.
What are the radiographic signs of pulmonary fibrosis?
Radiographic features
- honeycombing.
- traction bronchiectasis.
- lung architectural distortion.
- reticulation.
- interlobular septal thickening: this feature is not specific for fibrosis.
What causes septal thickening?
The most common causes of interlobular septal thickening on HRCT are pulmonary edema, pulmonary hemorrhage, and lymphangitic spread of cancer, and smooth thickening is characteristic of all three.
What is reticulation in the lungs?
Reticulation. Reticulation results from thickening of the interlobular or intralobular septa and appears as several linear opacities that resemble a mesh or a net on HRCT scans. 7 The presence of reticulation is indicative of interstitial lung disease.
What does it mean to have infiltrates in lungs?
A pulmonary infiltrate is a substance denser than air, such as pus, blood, or protein, which lingers within the parenchyma of the lungs. Pulmonary infiltrates are associated with pneumonia, and tuberculosis.
How would you describe pneumothorax on CXR?
A pneumothorax is, when looked for, usually easily appreciated on erect chest radiographs. Typically they demonstrate: visible visceral pleural edge is seen as a very thin, sharp white line. no lung markings are seen peripheral to this line.
What does pulmonary fibrosis look like on CXR?
Early in the disease, the most common radiographic changes are an interstitial shadowing of small (1 to 2 mm), irregular opacities, which are seen in about 75% of patients. Less common are small, round opacities, which are seen in 20% of patients. This finding is generally known as reticulonodular opacities.
What does CT scan look like with pulmonary fibrosis?
On a CT scan, IPF often shows up as a distinctive pattern on the lungs. You might hear your doctor call this honeycomb lung. The image shows lots of empty pockets or bubbles appearing where more solid-looking lung tissue would normally appear.
What are reticulonodular infiltrates on a chest radiograph?
Hereof, what are Reticulonodular infiltrates? 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.
When to use reticulonodular interstitial pattern in CT scan?
A reticulonodular interstitial pattern is an imaging descriptive term that can be used in thoracic radiographs or CT scans when are there is an overlap of reticular shadows with nodular shadows. This may be used to describe a regional pattern or a diffuse pattern throughout the lungs.
What are the results of a chest radiograph?
Heart sounds were normal, and lungs were clear on auscultation. The abdomen was nontender, without any palpable masses. The chest radiograph revealed a diffuse, coarse reticulonodular pattern with no zonal predominance and short Kerley B lines at the periphery of the mid and lower zones of the left lung ( Fig 1 ).
What causes diffuse reticular opacities in the lungs?
The appearance is similar to that seen with viral infections. Hazy, reticular, or reticulonodular opacities that occur diffusely in the lungs indicate interstitial lung pathology, and the causes include many of the same conditions that cause parahilar peribronchial opacities ( Table 50.4 ).