ID Learning Resources

1.An alveolar pattern on the Chest Xray is indicated by all of the following except?

False statement about silhouette sign?

1. It refers to the blurring/ missing interface at the border of the heart or mediastinum when there is an underlying pathology
   
2. It applies only to changes on the radiograph secondary to pneumonia
   
3. Its utility is in reflecting the precise site of the pathology
   
4. Obliteration of the aortic knuckle indicates the pathology is in the left upper segment
   

Identify the sign

1. Air bronchogram
   
2. Silhouette sign
   
3. Reverse ‘S’ sign
   
4. Bulging fissure sign
   

The most common cause of pneumatocoeles is?

1. Proteus mirabilis
   
2. E coli
   
3. Mechanical ventilation
   
4. Staphylococcus
   

Ranke’s lesion is defined as

1. Radiological equivalent of Ghon’s focus
   
2. Equivalent to Ghon’s complex
   
3. Radiological equivalent of Ghon’s complex
   
4. Calcified mediastinal lymph nodes 
   

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