16 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis: ill ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table ... #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... #Radiology #Pulmonary ... #HRCT #ChestCT ... #Differential #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
bronchiolitis: ill ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... Differential #Comparison #Table ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... patterns: reticular, nodular ... low attenuation (table ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
also uncommon HRCT-presentations ... some of them the old ... #Diagnosis #Radiology ... SHITFACED #Mnemonic #HRCT ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... making an accurate diagnosis ... structures of the lung ... #Diagnosis #Radiology ... Comparison #Diagram #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
nodules. ... can suggest the diagnosis ... nodules and a feeding ... #Clinical #Radiology ... SepticEmboli #Cavity #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... morphologic findings on HRCT ... #Diagnosis #Radiology ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
Whenever you see an area of increased density within the lung, it must be the result
or multifocal ill-defined ... opacities or small nodules ... . 3- Nodule or mass ... #Diagnosis #Radiology ... Consolidation #Patterns #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
HR-pattern: reticular nodular ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... Interpretation #Algorithm #ILD ... #RadiologyAssistant