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The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
PA-film shows a silhouette ... consolidation due to a pneumonia ... Sterptococcus pneumoniae ... #Clinical #Radiology ... #CXR #Pneumonia
Here we see a consolidation which is located in the left lower lobe.
There is a normal
There is a normal silhouette ... #Clinical #Radiology ... #CXR #Pneumonia
On this lateral film there is too much density over the lower part of the spine.
By
there is a normal silhouette ... still see the silhouette ... The pneumonia does ... #Clinical #Radiology ... #CXR #Pneumonia
Here a typical lobar consolidation.
First study the images, then continue reading.
The findings are:
increased density with ill-defined
lung the heart silhouette ... in Klebsiella pneumoniae ... Streptococcus pneumoniae ... with obstructive pneumonia ... #Clinical #Radiology
On a normal lateral chest film the silhouette of the left diaphragm 2- can be seen
chest film the silhouette ... #Clinical #Radiology ... #CXR #Pneumonia
Characteristics of Selected Pneumonias

Streptococcus pneumoniae (pneumococcus). Gram-positive diplococci. 
Haemophilus influenzae. Pleomorphic gram-negative coccobacilli. 
Staphylococcus aureus. Plump
Characteristics of Selected Pneumonias ... Streptococcus pneumoniae ... Klebsiella pneumoniae ... Mycoplasma pneumoniae ... #Pneumonia #Patterns
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
tuberculosis, Bacterial pneumonia ... Pneumocystis jirovecii pneumonia ... , Cryptococcal pneumonia ... Aspergillus Pneumonia ... - 20% of pneumonias
PA view
On the PA chest-film it is important to examine all the areas where the lung
Silhouette - for ... These lines and silhouettes ... of the normal silhouette ... is called the silhouette ... #Clinical #Anatomy
Community Acquired Pneumonia (CAP) - Microbiology
 • Typicals: Strep pneumoniae, H influenzae, Moraxella catarrhalis, Staph aureus,
Community Acquired Pneumonia ... Typicals: Strep pneumoniae ... Legionella, Mycoplasma pneumoniae ... , Chlamydia pneumoniae ... Community #Acquired #Pneumonia
More common & convincing pneumonia mimics 

Aspiration pneumonitis, 
Pulmonary vasculitis, 
Acute eosinophilic pneummia,  
Cryptogeric organizing
common & convincing pneumonia ... Acute eosinophilic pneummia ... Cryptogeric organizing pneumonia ... PIP), Fungal pneumonia ... Pulmonary Emboli #Pneumonia