“…While obtaining an accurate history from patients with recent drug use can be difficult, in this case there was no reported episode of asthma, vomiting, trauma or Valsalva. This is similar to previous reported cases of spontaneous pneumomediastinum in the setting of ecstasy use 6,9,11,12 . This association between ecstasy and barotrauma may result from the decrease in interstitial pressure and hence increased bronchovascular gradient occurring with the high levels of physical exertion undertaken by some ecstasy users.…”