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[edit] Discussion

  • Abnormal presence of air within the pleural space

[edit] Etiologies

  • Spontaneous pneumothorax
  • Traumatic pneumothorax
  • Iatrogenic pneumothorax
  • Catamenial pneumothorax (due to endometriosis in the chest cavity)

[edit] Imaging Findings

[edit] Plain film

  • Outer margin of the visceral pleura and lung is separated from for the parietal pleura and the chest wall by a lucent gas filled space devoid of pulmonary vessels.
  • When supsected PTX is not seen on an inspiration view, expiration or decubitus views may be helpful (i.e if you suspect a left pneumothorax, perform a right lateral decubitus view).

[edit] Images

Patient #1: Acute onset of SOB

Patient #2: Patient with known PCP presents with acute SOB

Patient #3: Acute desaturation

Patient #4: Right deep sulcus sign

[edit] See Also

[edit] External Links

Goldminer: Pneumothorax

[edit] References