The authors of this study from the Journal of Thoracic Oncology acknowledge the therapeutic benefit of marijuana (cannabis) for chronic diseases and as an adjunct to cancer treatment, particularly chemotherapy induced nausea and vomiting, and for pain management.
They express common medical concern that not enough studies have been done (thank you prohibition) to assess all the biological activities of all the compounds in the plant.
This consideration is both obvious and valid. However, they do make the definitive statement as follows: “Smoking cannabis has not been proved to be a risk factor in the development of lung cancer…” followed by their concern regarding the paucity of (too few) studies.
The apparent good news is that unlike tobacco, marijuana has not been associated with lung cancer.
