12 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
about imaging findings ... there are four patterns ... low attenuation (table ... The cystic pattern ... pattern can be
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... are visible, the pattern ... bronchovascular interstitium ... HRCT #CTChest #NodularPattern ... #Nodular #Pattern
The distribution of nodules shown on HRCT is the most important factor in making an accurate
in the nodular pattern ... Random refers to ... peribronchovascular interstitium ... Pulmonary #HRCT #NodularPattern ... #Nodular #Pattern
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... Miliary TB: random ... CTChest #Nodular #Pattern ... #NodularPattern ... Differential #Comparison #Table
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
The idiopathic interstitial ... unknown cause and interstitial ... listed in the table ... have specific patterns ... realise, that these patterns
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT Patterns ... Diagnosis Framework Reticular ... Lymphangitic Carcinoma, Interstitial ... Nodular: • Random ... HighRes #Chest #CT #Patterns
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... of reticular opacities ... a predominant finding ... differential diagnosis (Table ... HRCT #CTChest #Reticular
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... edema: incidental finding ... peribronchovascular interstitium ... #Pattern #Comparison ... #Table #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... : reticular nodular ... perilymphatic or random ... there additional findings ... Interpretation #Algorithm
Key findings in alveolar proteinosis
- Crazy paving pattern: reticular pattern superimposed on ground glass opacification.
- Opacifications
Key findings in ... - Crazy paving pattern ... : reticular pattern ... transported to the interstitium