Radiology Flashcards
What do we need to see on any andequate CXR?
RIP
Rotation
Inspiration
Penetration
How do we know we have adequate penetration?
Vertebral bodies and left hemidiaphrgam visible through the heart
In terms of mediastinal shift what will the difference be between atelectasis and PT?
PT will push the trachea away whereas atelectasis will pull it towards.
What is the most common cause of PT?
trauma - laceration of visceral pleura by a fractured rib
What defines a large PT?
Lung edge measuring more than 2 cm away from the inner chest wall at the level of the hilum
What are some generic findings in lobar lung collapse?
Elevation of the ipsilateral hemidiaphragm
Crowding of ipsilateral ribs
Shift of the mediastinum towards the side of atelectasis
Crowding of the pulmonary vessels
What is a tension pneumothorax?
Haemodynamic upset
Blood pressure decreasing and heart rate increasing.
What are some issues with having incomplete inspiration of CXR?
Big heart
Increased lung markings
What does the right heart border interface with?
Right atrium and middle lobe
What does the left heart border interface with?
LV and lingula of the heart
How can you tell a pneumothorax is undertensionof a CXR?
Trachea and mediastinal shift
Depressed hemidiaphragm
What are CXR features of pleural effusion?
Uniform white area with loss of costophrenic angle and meniscus at upper border
What is seems in a left lobar lung collapse?
Upper lobe collapse?
Sail sign
Veil like opacity with luftsichel sign
How do you distinguish between a nodule and mass on CXR?
<3cm is a nodule
