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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 ... opacities - Fine Nodular ... - Multiple Masses ... Atelectasis #Diagnosis #Clinical ... #Radiology #CXR
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... stage before the ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... centrilobular nodules ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
Sarcoid end-stage ... glass opacity and consolidation ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Sarcoidosis end-stage ... : consolidation ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Sarcoidosis
In this case the chest x-ray shows subtle findings that could be described as fine reticulation.
In
the chest x-ray ... HRCT is needed to ... The HRCT - not shown ... #Clinical #Radiology ... #CXR #Sarcoidosis
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... patterns: reticular, nodular ... low attenuation (table ... seen and in many cases ... #Diagnosis #Radiology
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... chronic illness, clinical ... between these chest ... in fact this is nodular ... #Radiology #CXR
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
multiple ill-defined nodules ... CT demonstrates ... which are probably consolidations ... #Clinical #Radiology ... #CXR #CTChest #
Lung infarction
In pulmonar embolism it is not common to see consolidation.
The consolidation is a result of
The consolidation ... pulmonary embolus has caused ... On the CT we can ... #Clinical #Radiology ... #CXR #CTChest #