15 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Emphysema - Lung ... on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... #Differential #Diagram ... Emphysema #SignetRing #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... - Aspiration - Pulmonary ... #HRCT #ChestCT ... #Differential #Table ... #Upper #Lower #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... low attenuation (table ... seen and in many cases ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... morphologic findings on HRCT ... Diagnosis #Radiology #Pulmonary ... ILD #Findings #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... or tumor cells (Table ... UIP, NSIP and long ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
In most cases small ... structures of the lung ... Diagnosis #Radiology #Pulmonary ... Perilymphatic #Comparison #Diagram ... #RadiologyAssistant
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
carcinoma of the lung ... hemorrhage) - Pulmonary ... pathology (e.g. ... Differential #Diagnosis #Table ... #Causes #Sodium
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 ... pattern at the lung ... HRCT demonstrated ... #Honeycombing #RadiologyAssistant
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... shows a small, stable ... • Vasculitis (e.g ... #Abscess #pulmonary ... #differential #causes
Metastases
Metastases are the most common cause of multiple pulmonary masses.
Usually they vary in size and are
the most common cause ... of multiple pulmonary ... HRCT will demonstrate ... CXR #LungMets #Lung ... #Metastases #RadiologyAssistant