18 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
(COP), chronic ... eosinophilic pneumonia ... Radiology #Pulmonary #HRCT ... #Differential #Table ... Central #Peripheral #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Clinical manifestations ... - Imaging: • CXR ... , cavities • HRCT ... , Chronic eosinophilia ... #COP #BOOP #pulmonary
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
Cryptogenic organizing pneumonia ... Sarcoidosis end-stage ... #Clinical #Radiology ... #HRCT #CTChest ... #Table #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... (OP) and chronic ... BOOP - Bronchiolitis ... #Differential #Table ... #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
Sarcoid end-stage ... consolidation #Clinical ... #Radiology #HRCT ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
x-ray there is an ill-defined ... In the proper clinical ... of chronic consolidation ... #CXR #AirBronchogram ... #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
masses. ... (OP) also known ... #Clinical #Radiology ... #CXR #Peripheral ... #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis: ill ... #Clinical #Radiology ... #HRCT #CTChest ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... morphologic findings on HRCT ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Artery Disease • Stable ... Pulmonary Alveoli • Pneumonia ... • ARDS • COPD ... Interstitium • ILD