NURS 412 Lecture Notes - Lecture 11: Prostate Cancer, Breast Cancer, Central Nervous System
Document Summary
Cancer: (cid:862)(cid:272)ra(cid:271) like(cid:863: central body and arms that reach out into surrounding tissues. Central body mass of abnormal cells. Benign tumors: not cancerous, abnormal cells that tend to stay together, do(cid:374)"t spread i(cid:374)to surrou(cid:374)di(cid:374)g tissues, grows slowly, cells do(cid:374)"t di(cid:448)ide rapidly, can be treated, can enlarge and affect other body systems. Malignmant tumors: abnormal cells that do not function properly, cells divide rapidly. Invade nearby healthy tissue: cells travel through the bloodstream to other parts of the body, metastasis: starting a new cancerous tumor. Some cancers are very rare, others are common. About 67% of cancer deaths will occur in people older than 65. 87% of cancers are diagnosed in people older than 50. Most common cancers mostly seen in elderly: breast, lung, prostate, colon-rectal. Five main categories: carcinomas, skin or tissues that line internal organs, sarcomas, leukemia, lymphomas, central nervous system cancers.
