It is widely known throughout the medical world that skin cancers emit certain odors, and recent studies have shown that dogs are able to detect tumors(腫瘍)by sniffing out(嗅ぎつける、見つけ出す)this scent. The specific odor, according to a team of US chemists, has now been isolated, and they have quantified the compounds involved in the smell. By creating "odor profiles" for the different types of skin cancer, the team hopes to revolutionize the diagnosis of such cancers.