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More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
disease. ... diseases, that ... diseases is extremely ... #Diagnosis #Radiology ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... Honeycombing Most diseases ... on the basis of HRCT ... #Diagnosis #Radiology ... Emphysema #SignetRing #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... Smoking related diseases ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Upper #Lower #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
not represent 'diseases ... indicates unknown cause ... These diseases have ... collagen vascular diseases ... diseases.
Metastases
Metastases are the most common cause of multiple pulmonary masses.
Usually they vary in size and are
HRCT will demonstrate ... distribution unlike other diseases ... subsequent spread of disease ... #Clinical #Radiology ... #Metastases #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... disease comes from ... disease and what ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... result of air space disease ... or interstitial lung ... disease (i.e. fibrosis ... #Differential #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
with airspace disease ... you think of the causes ... UIP, NSIP and long ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Ground-glass opacity is nonspecific, but highly significant finding since 60-80% of patients with ground-glass opacity on
potentially treatable lung ... disease. ... the lung disease ... #Clinical #Radiology ... GroundGlass #GGO #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
In most cases small ... distribution In certain diseases ... structures of the lung ... #Diagnosis #Radiology ... Comparison #Diagram #RadiologyAssistant