Recognizing Atelectasis Flashcards
Signs of Atelectasis
- Displacement of the interlobar fissures toward the area of atelectasis 2. Increase in density of the affected lung 3. Displacement of the mobile structures of the thorax 4. Overinflation of the unaffected ipsilateral lobes or the contralateral lung
Types of Atelectasis
- Subsegmental atelectasis (discoid atelectasis or plate-like atelectasis) 2. Compressive atelectasis 3. Obstructive atelectasis
linear densities of varying thickness usually parallel to the diaphragm
Subsegmental atelectasis
Atelectasis due to passive compression of the lung due to poor inspiratory effort, large pleural effusion, pneumothorax, or SOL.
Compressive atelectasis
Compressive atelectasis usually seen at the periphery of the lung base and develops from combination of prior pleural dse and pleural effusion/ is an unusual type of lung atelectasis where there is infolding of a redundant pleura . The way the lung collapses can at times give a false mass like appearance.
Round atelectasis ( folded lung or Blesovsky syndrome)
This form of atelectasis is usually seen at the periphery of the lung base due to prior pleural disease and fromation of pleural effusion that produces adjacent compressivie atelectasis.
is an unusual type of lung atelectasis where there is infolding of a redundant pleura . The way the lung collapses can at times give a false mass like appearance.
Round atelectasis
there is upward shift of the minor fissure
there is rightward shift of the trachea
Lateral:
There is upward shift of the minor fissure and forward shift of the major fissure
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increased density in the upper medial aspect of the right hemithorax
elevation of the horizontal fissure
loss of the normal right medial cardiomediastinal contour
elevation of the right hilum
hyperinflation of the right middle and lower lobe result in increased translucency of the mid and lower parts of the right lung
right juxtaphrenic peak
RUL atelectasis
there is a mass in the right hilim producing righr upper lobe atelectasis the combination of the hilar mass and the upward shift of the minor fissure produces a characteristic appearnce
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the appearance is that of right upper lobar collapse (the right upper lobe appearing dense and shifting medially and upwards) with a central mass expanding the hilum
S sign of Golden