Cancer Flashcards
global cancer facts
2018 = 18 million new cases
incidence rate expected to rise by 26million by 2030
more than 60% of new annual cases occur in africa, asia, and central/south america (these regions account for 70% of cancer deaths)
cancer is leading cause of death worldwide
caused 9.5 million deaths in 2018
expected to rise to 22 million deaths per year in the next 2 decades
cancer in canada over the next 30 years
almost 6 million will develop it
3 million will die
over 38 million potential life years will be lost due to premature death
burden on healthcare system will continue to grow
alberta cancer 2017
19,865 new cases diagnosed
6,653 died
basics of cancer
collection of 200 diseases that fall into the same category
occurs when healthy cells live beyond their normal life cycle, do not die, and continue to grow out of control
as abnormal cells multiply they destroy normal healthy ones
most cancers named after organ or cell they begin in
how tumors are classified
by type of tissue they affect
carcinomas
leukemia/lymphoma
sarcoma
carcinomas
most common
affecting cells that line organs and cover the surface of the body
leukemia/lymphoma
cancers that affect the cells of the blood (leukemia) and immune system (lymphoma)
sarcoma
cancers that affect cells of bone, muscle and connective tissue
how cancer spreads
cells may metastasize to other parts of the body and continue to multiply
stage one of cancer
cancer is confined and has not spread to neighbouring tissue
stage two of cancer
cancer has spread beyond the original site but there is no lymph node involvement
stage three of cancer
cancer has spread beyond the original site to nearby lymph nodes but not to other parts of the body
stage four of cancer
cancer has spread to distant organs
treatment options
each type of cancer is treated differently because they don't all respond the same surgery radiation therapy chemotherapy biological therapy transplant