Hi guys. can anyone tell me what are malignant and non malignant cancers?

Malignant vs. benign: In the pure definition, cancer, is generally considered to be "malignant", meaning having the ability to not only grow abnormally, but to invade other tissue types and spread. Sometimes we describe a tumor (a growth of cells) as either "malignant" (a type of cancer) or benign (which is non-malignant or non-cancerous). An example might be a fibroid or leiomyoma of the uterus, usually benign.