This week's artwork was donated by Gavin, a pediatric cancer patient who received treatment at The Children's Hospital of Philadelphia . Your pet has been diagnosed with cancer.
Cancer is a disease that is due to the uncontrolled and purposeless growth of cells in the body.
The terms cancer, malignancy, and neoplasia are synonyms. Cancer is not a single disease since it can arise from any tissue in the body. Therefore, there are many types of cancer. Some forms of cancer have the ability to spread to other sites in the body which are often far from the original site. This occurs when cancer cells enter the blood or lymph vessels and are then carried to other organs.