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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... - Emphysema - Lung ... on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... histiocytosis or honeycombing ... seen and in many cases ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... bronchiectasis, no honeycombing ... Sarcoidosis end-stage: consolidation ... Clinical #Radiology #HRCT ... Comparison #Table #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... A HRCT is needed ... at the lung bases ... HRCT demonstrated ... RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... Consolidation - ... mass - Solitary Pulmonary ... Nodule - Multiple Masses ... #Patterns #RadiologyAssistant
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
preference at the lung ... bases. ... The HRCT demonstrates ... honeycombing and ... TractionBronchiectasis #RadiologyAssistant
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
Figure 3 HRCT-LUS ... , pulmonary congestion ... artifact); (G) UIP pattern ... bronchiectasis, and honeycombing ... Clinical #Diagnosis #HRCT
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... and other non-pulmonary ... Pulmonary hemorrhage ... nodular interstitial lung ... #Causes #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... UIP, NSIP and long ... the alveoli and cause ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
to look at the pattern ... more than one pattern ... lobar pneumonia caused ... Diagnosis #Radiology #Pulmonary ... Differential #Table #RadiologyAssistant