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Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... on a chest x-ray ... Interstitial - ... mass - Solitary Pulmonary ... #Patterns #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
lung disease (i.e ... in ground glass pattern ... bronchiolitis, PCP ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... low attenuation (table ... lung disease and ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... . 1- Consolidation ... that fills the alveoli ... opacities. 2- Interstitial ... #Patterns #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
the air in the alveoli ... or tumor cells (Table ... UIP, NSIP and long ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
Pulmonary hemorrhage ... filling of the alveoli ... this is nodular interstitial ... lung disease, that ... #Causes #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
opacities, Unilateral consolidation ... and GG pattern, ... • HRCT: patchy consolidation ... eosinophilia pneumonia, Pulmonary ... Pneumonia #COP #BOOP #pulmonary
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 ... to look at the pattern ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... have specific patterns ... realise, that these patterns ... Diagnosis #Radiology #Pulmonary ... ILD #Findings #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... cells results in a pattern ... differential diagnosis (Table ... or lymphoma and alveolar ... #Differential #RadiologyAssistant