Oncology Flashcards
Swelling - Benign
Tumor
New growth
Neoplasia
Study of tumors or neoplasia
Oncology
Maturation; extent to which neoplastic parenchymal cells resemble the corresponding normal parenchymal cells- morphologically and functionally
DIFFERENTATION
Poorly differentiated cells = ?
Malignant - malayo itsura sa normal
Well differentiated cells = ?
Benign - malapit itsura sa normal
Lack/loss of differentiation associated w morphologic changes
Anaplasia
Variation in size and shape
A. Dysplasia
B. Neoplasia
C. Pleomorphism
D. Anaplasia
Pleomorphism
Loss of Polarity, disturbed orientation = ?
Meaning tissues and cells (anaplastic glands) are disorganized
Loss in uniformity & architectural orientation of cells, pre-cancerous stage, reversible, disordered growth and often occurs in metaplastic epithelium.
A. Dysplasia
B. Neoplasia
C. Pleomorphism
D. Anaplasia
Dysplasia
Abnormal mass of tissue
A. Dysplasia
B. Neoplasia
C. Pleomorphism
D. Anaplasia
Neoplasia
Growth exceeds and uncoordinated with that of the normal tissue, autonomous, and clonal-arise from single cell that incurred genetic damage
NEOPLASIA
BENIGN OR MALIGNANT
Remain localized
Benign
BENIGN OR MALIGNANT
Cause death
MALIGNANT
BENIGN OR MALIGNANT
Amenable to surgical removal
BENIGN
BENIGN OR MALIGNANT
Relatively innocent and pt. Generally survives
BENIGN
BENIGN OR MALIGNANT
Invade and destroy adjacent structures
MALIGNANT
BENIGN OR MALIGNANT
Cancer
MALIGNANT
BENIGN OR MALIGNANT
Rapid erratic pace of rate of growth
MALIGNANT
BENIGN OR MALIGNANT
Local invasion - usually absent
BENIGN
BENIGN OR MALIGNANT
Poorly differentiated / anaplastic
MALIGNANT
Nuclear cytoplasmic ratio that is anaplastic
A. 1:1
B. 1:6
C. 1:3
D. All of these
1:1
Genes that promote autonomous growth
Oncogenes
normal cellular counterpart
Protoncogenes
products of genes without regulatory function
Oncoproteins
Breaks to cell proliferation; these genes lead to failure of growth inhibition, another fundamental hallmark of carcinogenesis
Tumor Suppressors
“Governor of cell cycle”
RB gene
“Guardian of the genome”
P53 protein
Mutation associated with retinoblastoma and osteosarcoma
RB GENE
Stops neoplastic transformation by Cell cycle arrest (quiescence and senescence) initiation of apoptosis
P53
Carcinoma = ?
Epithelial tissue
Sarcoma = ?
Connective tissue
Lymphoid tissue - ?
Hematopoietic tissue - ?
Lymphoma
Leukemia
T OR F
“Oma” connotes BENIGN, except seminoma, lymphoma, malanoma, hepatoma
TRUE
Infection with HTLV increases the risk for
Lymphoma
When anaplastic cels have disorganized arangement this si described as
A. loss of polarity
B. metaplasia
C. apoptosis
D. dysmorphism
Loss of polarity
This organism si associated with development of gastric carcinoma.
A. Entamoeba histolytica
B. Ascaris lumbricoides
C. Salmonella typhi
D. Helicobacter pylori
Helicobacter pylori
Which of the folowing tumor si malignant?
A. Fibroma
B. hepatoma
C. adenoma
D. leiomyoma
Hepatoma
Paraneoplastic syndromes present significant problems because htey
A. may destroy tissues
B. both choices
C. elaborate abnormal products which maybe harmful
D. neither choice
Both choices
A form of primary prevention of cancer is
A. vaccination
B. both
C. diet modification
D. Neither
Both
The UV ray exposure with greater risk for skin cancer is?
UV B
degree of differentiation of the tumor cells and the number of mitosis
Grading