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Here are the most common examples of these four patterns on a chest x-ray (click image
on a chest x-ray ... Lobar consolidation ... - Multifocal ill-defined ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
The table summarizes ... to look at the pattern ... more than one pattern ... #Diagnosis #Radiology ... #Differential #Table
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
On the chest x-ray ... there is an ill-defined ... long standing symptoms ... causes of chronic consolidation ... #Clinical #Radiology
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... . 1- Consolidation ... substances resulting in lobar ... or multifocal ill-defined ... #Diagnosis #Radiology
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... Differential #Comparison #Table
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... have specific patterns ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
important finding on a chest ... limited differential diagnosis ... produces only mild ... #Diagnosis #Radiology ... #Patterns #Comparison
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... (ground-glass, consolidation ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
The histologic pattern ... suggestive of the diagnosis ... #Clinical #Radiology ... #CTChest #AIP # ... AcuteInterstitialPneumonia #ILD