10 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
four patterns: ... low attenuation (table ... the most common pattern ... The cystic pattern ... pattern on a CXR
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Antinuclear Antibody ... and Cytoplasmic Patterns ... Nuclear Patterns ... : • Reticular/ ... SLE, SjS, CTD-ILD
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... Clinical #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)
Figure 3 HRCT-LUS ... artifact); (G) UIP pattern ... subpleural, basal reticular ... #Correlation #Table ... #ILD #Findings
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... incidental finding in HRCT ... Clinical #Radiology #HRCT ... #Pattern #Comparison ... #Table #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... have specific patterns ... morphologic findings on HRCT ... realise, that these patterns ... IdiopathicInterstitialPneumonia #ILD
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... the dominant HR-pattern ... : reticular nodular ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
Antinuclear Antibody Testing Cytoplasmic Patterns
Reticular/AMA: 
 • PBC, SSc, PBC/SSc OS, PBC/SjS OS
 • AMA
Speckled:
 •
Antinuclear Antibody ... Testing Cytoplasmic Patterns ... Reticular/AMA: ... SLE, SjS, CTD-ILD ... #Cytoplasmic #Patterns
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
The HRCT shows diffuse ... and some mosaic pattern ... Reticular abnormalities ... DesquamativeInterstitialPneumonia #ILD
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 ... differential diagnosis (Table ... Radiology #Pulmonary #HRCT ... #CTChest #Reticular