37 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... low attenuation (table ... On a Chest X-Ray ... is interstitial lung ... is reticular.
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... on a chest x-ray ... consolidation - Diffuse ... Interstitial - Reticular ... Consolidation #Patterns
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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The fourth pattern ... result in decreased lung ... - Emphysema - Lung ... Radiology #Pulmonary #CTChest ... Differential #Diagram #Comparison
Whenever you see an area of increased density within the lung, it must be the result
density within the lung ... of these four patterns ... resulting in lobar, diffuse ... fine or coarse reticular ... Consolidation #Patterns
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... are visible, the pattern ... the nodules are diffuse ... Pulmonary #HRCT #CTChest
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Radiology #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
correlation in normal lung ... Notes: (A) Normal lung ... artifact); (G) UIP pattern ... subpleural, basal reticular ... #Correlation #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... Radiology #HRCT #CTChest ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
demonstrates a reticular ... interstitial pattern ... preference at the lung ... Radiology #CXR #UIP #CTChest ... #Pattern #Honeycombing
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... Radiology #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table