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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 ... basis of HRCT findings ... Diagnosis #Radiology #Pulmonary ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
about imaging findings ... in interstitial lung ... histiocytosis or honeycombing ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... particularly at the lung ... Here a CXR with ... at the lung bases ... RadiologyAssistant
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
, pulmonary congestion ... fibrosis. ... artifact); (G) UIP pattern ... bronchiectasis, and honeycombing ... Correlation #Table #ILD #Findings
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
The CXR demonstrates ... preference at the lung ... bases. ... #Honeycombing # ... TractionBronchiectasis #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... combinations of fibrosis ... have specific patterns ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
Ground-glass opacity is nonspecific, but highly significant finding since 60-80% of patients with ground-glass opacity on
highly significant finding ... the lung disease ... the ground-glass pattern ... bronchiectasis and honeycombing ... GroundGlass #GGO #RadiologyAssistant
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
Silicosis is a fibrotic ... lung disease caused ... typical eggshell pattern ... clinical #radiology #CXR ... XRay #labeled #pulmonary
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
walls composed of fibrous ... and subpleural lung ... regardless of their cause ... This finding can ... Diagnosis #Radiology #Pulmonary
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
The radiographic findings ... bronchiectasis and subtle honeycombing ... like idiopathic pulmonary ... consider drug-related lung ... #RadiologyAssistant