Ch. 19/20 Flashcards
1
Q
characteristics of tumors: benign
A
- grow slowly
- encapsulated
- differentiated
- don’t spread
2
Q
carcinogenesis: environmental agents
A
- chemical carcinogens
- radiation
- viruses (RNA & DNA)
- oncogenes (ras/colon cancer, myc/lymphoma, and bcr-abl/ chronic myelogenous leukemia)
3
Q
carcinogenesis
A
heredity: retinoblastoma, polyposis coli, Wilm’s tumors, Ewing’s sarcomas
4
Q
sarcomas
A
connective tissue origin, 5% of all malignancies
5
Q
characteristics of tumors: malignant
A
- multiply rapidly
- invasive & infiltrative
- undifferentiated
- metastasize