Appendix cancer, also known as appendiceal cancer, is a very rare malignant tumor that forms in the vermiform appendix. <br> <br>Gastrointestinal stromal tumors are rare tumors with malignant potential. Primary lymphomas can occur in the appendix. Breast cancer, colon cancer, and tumors o

Cancer in adolescents and young adults is cancer which occurs in those between the ages of 15 and 39. This occurs in about 70,000 people a year in the United States—accounting for about 5 percent of cancers. This is about six times the number of cancers diagnosed in children ages 0–14.

Acute lymphoblastic leukemia (ALL) is a cancer of the lymphoid line of blood cells characterized by the development of large numbers of immature lymphocytes.