Ch. 19/20 Flashcards

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1
Q

characteristics of tumors: benign

A
  • grow slowly
  • encapsulated
  • differentiated
  • don’t spread
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2
Q

carcinogenesis: environmental agents

A
  • chemical carcinogens
  • radiation
  • viruses (RNA & DNA)
  • oncogenes (ras/colon cancer, myc/lymphoma, and bcr-abl/ chronic myelogenous leukemia)
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3
Q

carcinogenesis

A

heredity: retinoblastoma, polyposis coli, Wilm’s tumors, Ewing’s sarcomas

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4
Q

sarcomas

A

connective tissue origin, 5% of all malignancies

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5
Q

characteristics of tumors: malignant

A
  • multiply rapidly
  • invasive & infiltrative
  • undifferentiated
  • metastasize
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