However, benign tumors are not cancerous. While 'cancer' is often used interchangeably with 'tumor', I was referring to malignant tumors as it's common knowledg

However, benign tumors are not cancerous. While 'cancer' is often used interchangeably with 'tumor', I was referring to malignant tumors as it's common knowledge benign tumors can lay dormant. http://www.nlm.nih.gov/medlineplus/benigntumors.html http://www.nlm.nih.gov/medlineplus/benigntumors.html