Metastasis

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Title: Metastasis
Description: This illustration titled "How Cancer Spreads" explains the process of metastasis. Once metastatic cells are attached to the basement membrane (a physical barrier that seperates tissue components), they break through with the help of an enzyme called type IV collagenase. Cancer cells then move through the blood stream enabling them to spread to other parts of the body. A secondary tumor may form at another site in the body.
Topics/Categories: Cells or Tissue -- Abnormal Cells or Tissue
Type: Color, Illustration
Source: National Cancer Institute
Creator: Jane Hurd (Illustrator)
AV Number: AV-8903-3784
Date Created: March 1989
Date Added: January 1, 2001
Reuse Restrictions: None - This image is in the public domain and can be freely reused. Please credit the source and, where possible, the creator listed above.