Fouty- radiology of obstructive disease Flashcards
normal or abnormal to see lymph nodes on CT or radiograph
abnormal
station 10 lymph nodes
hilar nodes
station 2 lymph nodes
paratracheal nodes
3 arteries off the aorta
L brachioceohalic a.
L common carotid
L subclavian
what station lymph nodes get enlarged in sarcoidosis
station 2 lymph nodes
station of lymph nodes at tracheal bifurcation
station 7 lymph nodes (subcarinal)
if R and L lymph nodes are enlarged think what
systemic process
(sarcoidosis or lymphoma)
asymmetric enlargement of nodes think what
infection or cancer (localized)
station 10 nodes
hilar nodes
station 7 nodes
carinal nodes
station 2 nodes
paratracheal
R hilum enlarged
station 2 lymph nodes enlarged
what to think if R hilum is enlarged
pulmonary HTN or lymph node enlargement
L and R hilum enlarged (think what)
pulmonary a. enlargement or lymph node enlargement
classic CXR for what
sarcoidosis
(station 2 and 10 nodal enlargement)
enlargement of nodes
classic CT for what
lymphoma (possible sarcoidosis)
explain
obstructive CXR:
hyperinflation
flat diaphragm
lucency
normal lateral
what can’t you identify on PA, but can on lateral CXR
upper and lower lobes
explain
flat diaphragm
increased retrosternal airspace
(obstructive)
explain
barrel chest
huge restrosternal space
flat diaphragm
(emphysema)
“moth eaten”
emphysema
upper lobe predomination—-seen in smokers
centrilobular emphysema
lower lobe emphysema seen in what predominantly
A1AT deficiency
lower lobe emphysema
A1AT
centrilobular emphysema seen where and with whom
upper lobe
smokers
centri-lobular/acinar emphysema
smokers in upper lobe
pan-acinar emphysema
A1AT deficiency
L and R
L: emphysema
R: bronchiectasis
dilated bronchi that may be filled with mucus (person with CF)
bronchiectasis
dilated bronchi with mucus
bronchiectasis
look at airway and vessel size
normal
dilation and thickening
bronchiectasis
airways large and dilated
bronchiectasis
obstruction due to trying to cough but no cartilage seen and collapse and entrapment of mucus
bronchiectasis
gold standard for diagnosing bronchiectasis
CT
central bronchiectasis due to what
ABPA (aspergillus fungal infection)
bronchiectasis
mosaic pattern on expiration
bronchiolitis obliterans
inflammation of bronchioles
bronchiolitis obliterans
mosaic pattern
bronchiolitis obliterans
(black area is gas trapping)
tracheal tumor, what kind of obstruction
upper airway obstruction
airway obstruction (intra-thoracic)
