Oncology 2 Flashcards
1
Q
Neoplasm classifications are based upon:
A
- Cell type
- Tissue of origin
- Degree of differentiation
- Anatomic site
- Benign/malignant
2
Q
For tumor grading and staging, a (lower/higher) number indicates a better prognosis
A
LOWER
3
Q
What is a tumor grade?
A
- Grading describes the tumor cells and tissues
- Looks at differentiation
4
Q
What are the tumor grades?
A
GX G1 G2 G3 G4
5
Q
What is a GX tumor?
A
- undetermined
- can’t be assessed
6
Q
What is a G1 tumor?
A
Well differentiated (low grade)
7
Q
What is a G2 tumor?
A
Moderately differentiated (intermediate grade)
8
Q
What is a G3 tumor?
A
Poorly differentiated (high grade)
9
Q
What is a G4 tumor?
A
Undifferentiated (high grade)
10
Q
What system is used for tumor staging?
A
TNM system
11
Q
What does TNM stand for?
A
- Tumor size
- spread to lymph Nodes
- Metastasis
12
Q
What does staging show?
A
Shows the extent of the cancer
- How large
- Whether or not it has spread
13
Q
Tumor staging scale
A
0-4
14
Q
Stage 0 cancer
A
- tumor in situ (non-invasive)
- no spread to lymph nodes
- no metastase
15
Q
Stage 1 cancer
A
- tumor invasive but small in size
- no spread to lymph nodes
- no metastasis
