12 results
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
result of massive fibrosis ... COP. ... #Clinical #Radiology ... #HRCT #CTChest ... HighAttenuation #Pattern #Comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Chronic Eos PNA, Fibrosis ... #CT #Patterns #Differential ... Diagnosis #pulmonary #radiology
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
HRCT as seen in fibrosis ... bronchiolitis, PCP ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #GroundGlass #Differential
Longstanding Sarcoidosis
Here a typical chest film in a patient with long standing Sarcoidosis (stage IV).
There is
Here a typical chest ... There is fibrosis ... The differential ... #Clinical #Radiology ... #CXR #Lateral #
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... with end-stage fibrosis ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... Cyst #Emphysema #Comparison
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
In fibrosis there ... will be other signs ... of fibrosis like ... this #Clinical #Radiology ... #CTChest #COP #
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... In chronic HP fibrotic ... Clinical #Diagnosis #Radiology ... #CTChest #UIP # ... Comparison #Chronic
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Causes: • Cystic fibrosis ... evidence of cystic fibrosis ... Nasal polyps and signs ... Physical stigmata of cor ... Bronchiectasis #pulmonary #differential
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
most challenging differential ... the central dot sign ... helpfull in the differential ... #Clinical #Radiology ... #CXR #CTChest #