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Lung Point Sign

  • Slide 1 of 2
  • Slide 2 of 2

Pneumothorax -> ”lung point sign”

  • Where visceral pleura comes into, and then out of contact with parietal pleura
  • Most specific sign of PTX

sensor position

         Continue          


Narration

So we discussed how it may be possible to have absence of lung sliding but still not have a pneumothorax in an older patient with COPD or if they’ve had a prior lung procedure. However, if you can see this sign which is known as the lung point sign, its actually the most specific sign for pneumothorax. It shows the point at which the visceral pleura is coming in contact with the chest wall and it can tell you the size of the pneumothorax, as well it tells you exactly where that visceral pleura is coming into contact with the parietal pleura.

Pitfall -> pericardium

  • Beware pericardium on left
  • Not lung point

sensor position

         Continue           


Narration

One thing to be careful of is the pericardium, which is normal on the left and it can be mistaken for a lung point sign if the pericardium is coming in and out of the field of view when the patient breaths. And this is showing a normal left sided interrogation of the anterior thoracic space and you can see the heart coming up as the lung goes in and out and this is normal.


Thoracic Ultrasound

--- Table of Contents ---

Lesson NameMinutes id
Approach to Thoracic Ultrasound2
81
The Inferior Thoracic Space2
82
Pleural Effusions2
83
More Pleural Effusions3
84
The Anterior Pleural Line2
85
Ultrasound for Pneumothorax4
86
M-Mode for Pneumothorax2
87
Lung Point Sign2 checkmark
88
The ABZ Lines3
89
B lines and AIS3
90
Pneumonia2
91
Rib Fracture1
92

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