Cancer 101: A Cancer Education and Training Program for American Indians & Alaska Natives Cancer 101: A Cancer Education and Training Program for American.

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Presentation transcript:

Cancer 101: A Cancer Education and Training Program for American Indians & Alaska Natives Cancer 101: A Cancer Education and Training Program for American Indians & Alaska Natives Version 2 – Updated October 2011 Date Location Presented by: Presenter 1 Presenter 2

What Is Cancer? Cancer 101 – Version 2 Learning Module 2

Learning Objectives At the completion of Module 2, you will be able to:  Describe the process through which normal cells become cancerous.  Describe the difference between benign and malignant tumors.  Describe two types of cancer and where they occur in the body.

What is a cell?  The body’s basic unit of life  The human body contains trillions of cells  Each cell contains a nucleus  The cell’s nucleus contains our DNA

Our Bodies  Tissues are made up of cells  Organs are made up of tissues  Our body is made up of organs Each organ has a different function Examples of organs: brain, colon, kidneys, liver, lungs

What Is Cancer? The term “cancer” refers to more than 100 different diseases that begin in the cells, the body’s basic unit of life.

Normal Tissue New Cell Growth Old Cell Death Image Source: National Cancer Institute

Beginning of Tumor Growth New Cell Growth Old Cell Death Image Source: National Cancer Institute

Tumor When extra cells grow, they form a mass of tissue called a growth, or a tumor. Image Source: National Cancer Institute

Abnormal Cell Growth Increasing number of dividing cells  Growing mass of tissues (Tumor)   Benign Malignant Image Source: National Cancer Institute

Benign Tumors  Are not cancer  Do not spread to other parts of the body  Are usually not a threat to life  Labeled by adding the suffix “-oma” to the tissue of origin (lipoma, adenoma)

Malignant Tumors  Are cancer, and  have cells that can grow without control and invade or damage other parts of the body.  When cancer (malignant tumor) spreads from the original site to another part of the body it is called metastasis.

Metastasis: how cancer spreads Example:  If melanoma, a type of skin cancer, metastasizes (spreads) to the liver, the cancer cells in the liver are melanoma cells.  The disease is called metastatic melanoma (not liver cancer). Image Source: National Cancer Institute

Types of Cancer  There are over 100 different types of cancer  Treatment decisions are based on knowing the type of cancer involved

Types of Cancer (cont’d)  Solid Tumors Carcinomas Sarcomas  Cancers of the Blood & Bone Marrow Leukemia Lymphoma Myeloma Image Source: National Cancer Institute

Naming Cancers  Doctors use different prefixes to help distinguish among the different types of cancer.  For example: Osteo means bone. Osteosarcoma means a sarcoma arising in the bone.

In Summary You now have an understanding of:  The meaning of the word cancer  The difference between benign and malignant tumors  The process by which cancer spreads  The different types of cancer