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Here are the most common examples of these four patterns on a chest x-ray (click image
Consolidation - ... mass - Solitary Pulmonary ... Nodule - Multiple Masses ... Atelectasis #Diagnosis ... #Clinical #Radiology
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
the differential diagnosis ... In chronic disease ... OP) or chronic eosinophilic ... #Diagnosis #Radiology ... #Pulmonary #CXR
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... and other non-pulmonary ... interstitial lung disease ... #Clinical #Diagnosis ... #Radiology #CXR
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
with airspace disease ... you think of the causes ... the alveoli and cause ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
Diffuse consolidation ... The most common cause ... from the various causes ... chronic heart disease ... #Diagnosis #Radiology
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... lobar pneumonia caused ... OP) and chronic eosinophilic ... #Diagnosis #Radiology ... #Pulmonary #CXR
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
life-threatening diseases ... Other tests: • CT ... Goodpasture's cause ... ground glass or consolidative ... seen on chest CT
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... polyangiitis, Eosinophilic ... syndrome) • Eosinophilic ... #ILD #diagnosis ... #causes
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
complete ring of consolidation ... • Infectious Causes ... Non-Infectious Causes ... polyangiitis (Wegener), Eosinophilic ... #pulmonary
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
with multifocal consolidations ... multiple ill-defined masses ... the differential diagnosis ... of chronic consolidation ... #Clinical #Radiology