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Cancer
 

Cancer

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    Cancer Cancer Presentation Transcript

    • Understanding Cancer and Related Topics
      Understanding Cancer
      Developed by:Lewis J. Kleinsmith, Ph.D.Donna Kerrigan, M.S.Jeanne KellyBrian Hollen
      Discusses and illustrates what cancer is, explains the link between genes and cancer, and discusses what is known about the causes, detection, and diagnosis of the disease.
      These PowerPoint slides are not locked files. You can mix and match slides from different tutorials as you prepare your own lectures. In the Notes section, you will find explanations of the graphics.
      The art in this tutorial is copyrighted and may not be reused for commercial gain.Please do not remove the NCI logo or the copyright mark from any slide. These tutorials may be copied only if they are distributed free of charge for educational purposes.
    • What Is Cancer?
    • Different Kinds of Cancer
      Leukemias:
      Bloodstream
      Some common carcinomas:
      Lung
      Breast (women)
      Colon
      Bladder
      Prostate (men)
      Lymphomas:
      Lymph nodes
      Some common sarcomas:
      Fat
      Bone
      Muscle
    • Naming Cancers
      Cancer Prefixes Point to Location
      Prefix Meaning
      adeno- gland
      chondro- cartilage
      erythro- red blood cell
      hemangio- blood vessels
      hepato- liver
      lipo- fat
      lympho- lymphocyte
      melano- pigment cell
      myelo- bone marrow
      myo- muscle
      osteo- bone
    • Loss of Normal Growth Control
      Normal cell division
      Cell Suicide or Apoptosis
      Cell damage—no repair
      Cancer cell division
      Fourth orlater mutation
      Third mutation
      Second mutation
      First mutation
      Uncontrolled growth
    • Example of Normal Growth
      Dead cells shed from outer surface
      Epidermis
      Cell migration
      Dividing cells in basal layer
      Dermis
    • The Beginning of Cancerous Growth
      Underlying tissue
    • Tumors (Neoplasms)
      Underlying tissue
    • Invasion and Metastasis
      1
      Cancer cells invade surrounding tissues and blood vessels
      2
      Cancer cells are transported by the circulatory system to distant sites
      3
      Cancer cells reinvade and grow at new location
    • Malignant versus Benign Tumors
      Malignant (cancer) cells invade neighboring tissues, enter blood vessels, and metastasize to different sites
      Benign (not cancer) tumor cells grow only locally and cannot spread by invasion or metastasis
      Time
    • Why Cancer Is Potentially Dangerous
      Brain
      Melanoma cells travel through bloodstream
      Liver
      Melanoma(initial tumor)