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Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest x-ray ... Consolidation - Lobar ... - Reticular interstitial ... mass - Solitary Pulmonary ... Consolidation #Patterns #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Thickening of the interstitium ... ) or interstitial ... bronchiolitis, PCP ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
about imaging findings ... low attenuation (table ... findings. ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Cardiogenic pulmonary ... bronchovascular interstitium ... Cardiogenic pulmonary ... Differential #Comparison #Table ... #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
findings. ... Lobar pneumonia ... filling of the alveoli ... this is nodular interstitial ... Consolidation #Causes #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
The idiopathic interstitial ... unknown cause and interstitial ... listed in the table ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... content of the alveoli ... Diagnosis #Radiology #Pulmonary ... #Differential #Table ... #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
a predominant finding ... differential diagnosis (Table ... pulmonary edema ... or lymphoma and alveolar ... #Differential #RadiologyAssistant
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
edema: incidental finding ... peribronchovascular interstitium ... Alveolar proteinosis ... Pattern #Comparison #Table ... #RadiologyAssistant
On the left a patient with both septal thickening and ground glass opacity in a patchy
combination of findings ... be specific for alveolar ... sarcoidosis, nonspecific interstitial ... distress syndrome and pulmonary ... #Proteinosis #RadiologyAssistant