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A Tissue slide is a thin slice of snap-frozen OCT embedded block of tissue sent to the BCRs for imaging. This tissue sample provides DNA and RNA for the TCGA project.

  • A pathology review is conducted to determine whether the frozen tissue block (from which the slide originates) is qualified to make DNA/RNA for TCGA
  • The tissue for producing a tissue slide should be geographically adjacent to the tissue for producing the corresponding diagnostic slide
  • The purpose of pathology reviews on tissue slides is to determine whether the tissue block is qualified to make RNA or DNA for the project

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