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Here are the most common examples of these four patterns on a chest x-ray (click image
- Multifocal ill-defined ... mass - Solitary Pulmonary ... Nodule - Multiple Masses ... Atelectasis #Diagnosis #Clinical ... #Patterns #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... chronic illness, clinical ... Organizing pneumonia ... Infarction - peripheral ... #Causes #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
perihilar (batwing) or peripheral ... lobar pneumonia caused ... OP is organizing ... Diagnosis #Radiology #Pulmonary ... Differential #Table #RadiologyAssistant
On the left a patient with rheumatoid arthritis and bilateral peripheral consolidations as a result of
and bilateral peripheral ... consolidations ... #Clinical #Radiology ... RheumatoidArthritis #ILD ... #RadiologyAssistant
On the left a patient who complained of arthritic pain.

There are multiple small bilateral peripheral consolidations.
The
small bilateral peripheral ... consolidations. ... #Clinical #Radiology ... #Pneumonia #ILD ... #RadiologyAssistant
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
OP - Bilateral peripheral ... of cryptogenic organizing ... #Clinical #Radiology ... #Pneumonia #ILD ... #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
masses. ... There is a peripheral ... #Clinical #Radiology ... #CXR #Peripheral ... OrganizingPneumonia #BOOP #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... Pneumonia - Clinical ... Imaging: • CXR: Peripheral ... • HRCT: patchy consolidation ... #ILD #diagnosis
Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm
Peripheral Only:
 • Poor Perfusion
 • Acrocyanosis
Hemoglobinopathy:
Causes of Cyanosis ... Peripheral Only ... Total Anomalous Pulmonary ... #Causes #Peds # ... Pediatrics
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
On the left two cases ... subpleural and peripheral ... was cryptogenic organizing ... look like this #Clinical ... OrganizingPneumonia #RadiologyAssistant