Final Flashcards
(100 cards)
When looking at a lateral chest film what diaphragm is which?
One you can see all the way is the right and one that is only half visible is the left
Divisions of the mediastinum
Anterior: anterior to heart
Middle: posterior to heart
Posterior: 1cm behind VB
Air space disease look
White cloudy ill-defined
SOL has displaced air
Interstitial of lung
CT support
Capillaries, venues, and lymph vessels
Interstitial disease appearance
Wall affected vs room affected (airspace)
Coarse white lines that can be defined
CT is white lines
Air space vs interstitial pattern appearance
Air space: cloudy/hazy
Interstitial: coarseness defined lines
Cervicothoracic sign
Finding that only structures posteriorly located are seen above the clavicles
Air bronchogram sign
If lung is filled with water based pathology (pneumonia) bronchi appear radiolucent tubular (darker) densities
Confirms air-space disease
Findings of atelectasis
Displaced fissures
Increased pulmonary radiodensity (white)
Elevated diaphragm
Approximation of the vessels, brochi and ribs
Displaced mediastinum and hilar TOWARD lesion
Types of atelectasis
Obstructive MC!!! Ex: tumor Compressive (mass) Passive (pneumothorax) Contraction (scar formation TB) Adhesive (hyaline membrane disease-alveoli collapse)
S sign of golden
Atelectasis of RUL
Usually due to a mass
Two categories of bronchial asthma
Extrinsic: exposure to environmental triggers
Intrinsic: asthma, infection, exercise
Bronchiectasis
Damage to large airways of lung causing them to widen and thicken
Associated with cystic fibrosis and recurrent infections
Bronchiectasis xray
Ring shadows of dilated bronchi
Bilateral bc systemic
Honeycomb appearance
Bronchopulmonary sequestration
Section of lung that doesn’t develop properly and is separated
Radiodense mass above or below diaphragm
Emphysema
Chronic dilation of airspace distal to terminal bronchi
Alveolar wall destruction lead to large airspaces= Bullae
XRAY of emphysema
Bilaterally flat depressed hemidiaphragm Lung overinflation Increased radiolucency (white) Increased retrosternal space Kyphosis Increased intercostal space Prominent hilar vasculature Bullae (MC in apex-open circular space)
What may give a false appearance of cardiomegaly
Not taking a full breath in
What is normal size of heart
Less than width of hemothorax
Less than half width of thorax
What defines aneurysm
More than 50% dilation of aorta
Normal size is 2cm
True vs false aneurysm
True: all 3 layers involved
False: only outer layers
MC area of aneurysm
Descending thoracic aorta 50%
Thumbnail sign
Thoracic aortic aneurysm
MC heart defect
Ventricular septal defect