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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
basis of HRCT findings ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the lung ... In these cases comparison ... with old fims can ... #Clinical #Radiology ... Redistribution #RadiologyAssistant
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Other tests: • CT ... FINDINGS: • AAV ... Goodpasture's cause ... sparing of the lung ... seen on chest CT
Based on the images alone, it is usually not possible to determine the cause of the
findings. ... nodular interstitial lung ... #Clinical #Diagnosis ... #Radiology #CXR ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Lung infarction
In pulmonar embolism it is not common to see consolidation.
The consolidation is a result of
In this case a lung ... Here we see an old ... On the CT we can ... #Clinical #Radiology ... PulmonaryEmbolism #RadiologyAssistant
Bronchiectasis is defined as localized bronchial dilatation.
The diagnosis of bronchiectasis is usually based on a combination
the following findings ... the peripheral lung ... The most common cause ... #Diagnosis #Radiology ... #Pulmonary #Bronchiectasis
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... masses. ... The lab-findings ... #Clinical #Radiology ... OrganizingPneumonia #BOOP #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
very similar HRCT findings ... throughout the whole lung ... #Radiology #CTChest ... #UIP #Comparison ... #RadiologyAssistant