We wouldn’t be where we are today in the fight against cancer without radiology. This medical discipline helps to diagnose cancer with imaging studies and treat cancer with radiation therapy that kills cancer cells. Now radiology is getting a day of recognition.

Not long ago, scientists declared that diesel fumes were cancer-causing and linked to lung cancer. An international body has now gone a step further in classifying outdoor air pollution.

One of the frustrating facts about cancer is that doctors can’t tell if it’s going to come back after treatment. This may be changing, though, for lung cancer. An imaging technology has been found to be able to predict who may need more treatment.

Scientists have long been debating whether or not marijuana can be linked to lung cancer. A 40-year review suggests that cannibis (marijuana) does increase lung cancer risks, but the study is flawed, according to a leading cancer expert.

Lung cancer can be detected early using CT scans. But when doctors find nodules on these CT scans, it can be hard for them to tell which ones will likely turn out to be cancerous.

Chest X-rays are cheaper than CT scans, but are not routinely used to screen people who are at risk for lung cancer.

Though obesity can increase the risk of developing many diseases, the link between obesity and cancer outcomes is still not clear.

Early diagnosis of lung cancer is extremely important. If the cancer is diagnosed at an early stage, it can be treated more effectively and patients can enjoy a better quality of life.

Lung cancer isn’t a single disease. Changes in genes produce different versions of lung cancer — the most common cancer in the US. Now there's a new medication designed to treat one specific type of lung cancer.

Air pollution has been linked to an increased risk of lung cancer as well as several other lung conditions. This is one reason why government agencies set standards for air quality levels.