PT - JOURNAL ARTICLE AU - Johnson, Martin K AU - Smith, Robin P AU - Morrison, Douglas AU - Laszlo, Gabriel AU - White, Roger J TI - Large lung bullae in marijuana smokers AID - 10.1136/thorax.55.4.340 DP - 2000 Apr 01 TA - Thorax PG - 340--342 VI - 55 IP - 4 4099 - http://thorax.bmj.com/content/55/4/340.short 4100 - http://thorax.bmj.com/content/55/4/340.full SO - Thorax2000 Apr 01; 55 AB - The case histories are presented of four men with multiple large upper zone lung bullae but otherwise relatively preserved lung parenchyma. Each had a history of significant exposure to marijuana. In three of the four cases the tobacco smoking load had been relatively small, suggesting a possible causal role for marijuana in the pathogenesis of this unusual pattern of bullous emphysema.