O Kayley has a tumor in the red bone marrow (blood forming tissue) causing abnormal red blood cells.
O Felicia has a tumor in her arm that has been in the same spot without traveling to any other neighboring tissues.
O Sam has thyroid cancer that has spread quickly to her jaw and clavicle
Malignant tumors have cells that grow uncontrollably and spread locally and/or to distant sites. Malignant tumors are cancerous (ie, they invade other sites). They spread to distant sites via the bloodstream or the lymphatic system. This spread is called metastasis.