What types of cancer can alcoholism cause?

Many. Alcohol abuse is associated with liver, mouth, throat, esophagus, and stomach cancers. It is likely one of the most significant cancer risk factors, second only to tobacco. Even moderate alcohol use is linked to an increased risk of breast and colon cancer. For more info: http://www.Cancer.Org/acs/groups/content/@healthpromotions/documents/document/acsq-017622.Pdf.
Many. Many if not all type of cancer are contributed by alcoholism- to name a few-- head and neck cancer, liver cancer, esophageal, pancreatic, breast and many more. So please avoid alcohol.