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Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
in cryptogenic organizing ... pneumonia (COP) ... , chronic eosinophilic ... #Diagnosis #Radiology ... Central #Peripheral #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Chronic diseases ... OP is organizing ... #Diagnosis #Radiology ... #Pulmonary #CXR ... Differential #Table #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Cryptogenic Organizing ... Cryptogenic Organizing ... pneumonia, Chronic ... , Pulmonary lymphoma ... #BOOP #pulmonary
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
diseases like organizing ... pneumonia (OP) ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
month history of chronic ... the diagnosis of organizing ... #Clinical #Radiology ... #Distribution #Organizing ... #BOOP #RadiologyAssistant
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... ), Cryptogenic organizing ... : Acute, Chronic ... • Pulmonary Langerhans ... #differential #pulmonary
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
as a result of organizing ... pneumonia. ... #Clinical #Radiology ... #Cryptogenic #Organizing ... #ILD #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
like acute or chronic ... and other non-pulmonary ... Lobar pneumonia ... Organizing pneumonia ... Consolidation #Causes #RadiologyAssistant
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Non-Resolving Pneumonias ... PNA (acute or chronic ... - Cryptogenic organizing ... Others: - Pulmonary ... #NonResolving #Pneumonia
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
Mycoplasma and Viral Pneumonias ... - Bacterial Pneumonias ... Bronchiectasis - Pulmonary ... Tuberculosis - Lung Abscess ... Mitral Stenosis - Pulmonary