Right now, cancer is one of the most feared diseases in the world. In the early 1990s almost 6 million new cancer cases developed and more than 4 million deaths from cancers occurred. This is a huge disease that is killing people all over the world. The field of cancer study is called Oncology. The government has spent billions of dollars on research of this fatal disease.
Cancer is the most aggressive disease of a larger class known as neoplasms.
Neoplasms do not fully comply with the parts of the cell that control the growth and functions of the cell. These cells eventually become abnormal growths and can be recognized as not normal tissue. These traits are passed down as the cell reproduces therefore spreading the cancer. Malignant tumors, or abnormal tissue, grow more rapidly than benign tissue and they invade normal tissue. Benign tissue is structured similar to normal tissue while malignant tissue is abnormal and has an unstructured appearance.