vaporthorax

va·por·tho·rax

(vā'pŏr-thō'raks),
The existence of large water vapor bubbles in the pleural space between the lungs and the chest wall in an unprotected person exposed to altitudes above 63,000 ft., where the barometric pressure is less than 47 mm Hg and where water at body temperature vaporizes from the liquid state.