Ch 19 Oncology Flashcards
solid tumor
tumor composed of a mass of cells
staging tumors
system of evaluating the extent of spread of tumors
remission
partial or complete disappearance of symptoms of disease
sarcoma
cancerous tumor derived from connective or flesh tissue
palliative
relieving but not curing symptoms
pedunculated
possessing a stem or stalk
radiation
energy carried by a stream of particles
relapse
recurrence of tumor after treatment
oncogene
region of DNA in tumor cells or in viruses that causes cancer
neoplasm
new growth
mutation
change in DNA
irradiation
exposure to any form of radiant energy such as light , heat or xrays
malignant tumor
tumor with continuous growth, invasive and metastasis
metastasis
spread of a malignant tumor to a secondary site
grading tumors
evaluating the degree of maturity of tumor cells
infiltrative
extending beyond normal tissue boundaries into adjacent tissues
differentiating agents
specialization of cells
encapsulated
surrounded by a capsule (benign tumors)
carcinogens
agents that cause cancer
carcinoma
cancerous tumor made up of cells of epithelial origin
chemotherapy
treatment with drugs
anaplasia
loss of differentiation of cells
benign tumor
noncancerous growth