9 results
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Non specific interstitial ... organizing pneumonia (COP ... COP. ... Clinical #Radiology #HRCT ... #Pattern #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... On a Chest X-Ray ... on a CXR. ... Diagnosis #Radiology #Pulmonary ... #CXR #Interstitial
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Organizing Pneumonia (COP ... - Imaging: • CXR ... , cavities • HRCT ... Anti-dsDNA, ANCA COP ... Organizing #Pneumonia #COP
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Lymphangitic Carcinoma, Interstitial ... Hypersensitivity Pneumonia, COP ... Sarcoidosis, NSIP, COP ... #CT #Patterns #
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... On a chest X-ray ... A HRCT is needed ... HRCT demonstrated ... UIP #Reticular #Interstitial
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
have specific patterns ... morphologic findings on HRCT ... of NSIP, UIP, OP ... Diagnosis #Radiology #Pulmonary ... #CTChest #Idiopathic
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
heart failure, COPD ... Lymphocytic or lymphoid interstitial ... Evaluation: Imaging (CXR ... +/- High res CT ... chest scan), CBC
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
obstruction • COPD ... Physical stigmata of cor ... Diagnosis: • HRCT ... CT) • Broncho-arterial ... Laboratory: • ANA, RF, CCP
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
RB-ILD with subtle HRCT-findings ... The dominant pattern ... these non-specific CT ... would be on top ... Clinical #Radiology #CTChest