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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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result in decreased lung ... - Emphysema - Lung ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
Figure 3 HRCT-LUS ... arrow) arising from ... bronchiectasis, and honeycombing ... #Clinical #Diagnosis ... #HRCT #POCUS #Lung
Diagnostic algorithm for idiopathic pulmonary fibrosis, in part adapted from the ATS/ERS consensus statement. HRCT =
Diagnostic algorithm ... in part adapted from ... HRCT = high-resolution ... = interstitial lung ... #Diagnosis #Idiopathic
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... disease comes from ... histiocytosis or honeycombing ... #Diagnosis #Radiology ... #Pulmonary #CXR
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... - Aspiration - Pulmonary ... edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... A HRCT is needed ... to confirm the diagnosis ... HRCT demonstrated ... #Clinical #Radiology
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
also uncommon HRCT-presentations ... 80 - 90% of all diagnoses ... #Diagnosis #Radiology ... #Pulmonary #SHITFACED ... #Mnemonic #HRCT
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
lucencies within the lung ... emphysema, bulla, honeycombing ... density in the lung ... #Pulmonary #Diagnosis ... #Radiology
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Algorithm
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
Honeycombing is ... and subpleural lung ... distinguished from ... #Diagnosis #Radiology ... #Pulmonary #Honeycombing