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Here are the most common examples of these four patterns on a chest x-ray (click image
Interstitial - ... Reticular interstitial ... Nodule - Multiple Masses ... Diagnosis #Clinical #Radiology ... #CXR #Consolidation
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
Interstitial pneumonias ... most frequently caused ... The other cause ... #Clinical #Radiology ... #CXR #Acute #Interstitial
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... Pneumonias: • ... (COP), Respiratory ... Churg Strauss syndrome ... differential #pulmonary #causes
Causes of Respiratory Distress in the Newborn - Differential Diagnosis Algorithm
Premature Newborn
 - Normal CXR:
Causes of Respiratory ... Newborn - Normal CXR ... Narcosis - Abnormal CXR ... (TTNB) • Pneumonia ... Sepsis* • Pneumonia
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
This was a consolidation ... caused by Sterptococcus ... pneumoniae. ... #Clinical #Radiology ... #CXR #Pneumonia
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... Lobar pneumonia ... Organizing pneumonia ... this is nodular interstitial ... #CXR #Lobar #Consolidation
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Imaging: • CXR ... opacities, Unilateral consolidation ... • HRCT: patchy consolidation ... studies legionella/strep
Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
include the list of causes ... of chronic consolidation ... caused by Streptcoccus ... #Clinical #Radiology ... #CXR #AirBronchogram
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
that present with consolidation ... caused by streptococcus ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Consolidation
Causes of Acute Pediatric Cough - Differential Diagnosis Algorithm
No Fever, No Tachypnea
 - Normal Chest Auscultation
Causes of Acute ... Shows Consolidation ... • Bacterial pneumonia ... Atypical or viral pneumonia ... Diagnosis #Algorithm #Causes