Unit 8 Flashcards
onc/o
tumors
infiltrative
tumor extends into adjacent healthy tissue
meta
beyond, change
Metastasis
tumor cells spread from one part or organ to another not directly connected with it
ana
backward
dedifferentiation / anaplasia
malignant cells go back to embryonic cells
encapsulated
benign tumors are
histogenesis
formation and differentiation of tissue from undifferentiated cells
adenomas
Benign tumors that arise from epithelial cells
adenocarcinoma
cancerous tumor of an epithelium that originates in glandular tissue
Sarcomas
originate in connective tissue
sarc/o
connective tissue
glioma
Cancer in the connective tissue in the brain
neuroblastoma
childhood cancer arising from immature tissues in the autonomic nervous system
mixed-tissue tumors
sites of development are kidneys, ovaries, and testes
apoptosis
cell death
carcinogenesis
development of cancer, from mutations
mut/a
genetic change
mutation
stimulate cell growth or block DNA repair lead to the formation of malignant tumors
types of carcinogen
radiation, oncogenic viruses, toxic chemicals
oncogenic viruses
RNA viruses / retroviruses and DNA viruses
oncogene
a piece of DNA whose activation is associated with the conversion of normal cells into cancerous cells
guaiac fecal occult blood test (gFOBT)
presence of fecal occult blood (FOB) can indicate colorectal cancer
estrogen (estradiol) receptor assay
pinpoints the tumor’s receptivity to estrogen