Neoplasia Flashcards
1
Q
Macroscopic features of a benign tumors
A
- Expansile growth
- Capsule composed of CT, remain localized
- Usually compresses normal surrounding tissue
2
Q
What is the definitive dx of tumors?
A
The pathologic findings
3
Q
Tumor growth: Benign vs malignant
A
Benign: limited growth potential
Malignant: grow uncontrollably
4
Q
Macroscopic features of malignant tumors
A
- Not sharply demarcated
- Invade surrounding tissue
- Capacity to metastasize
5
Q
Benign tumor of epithelial, glandular origin
A
Adenoma
6
Q
Benign tumor of squamous origin
A
Papilloma
7
Q
Malignant tumor of epithelial origin
A
Carcinoma
8
Q
Malignant tumor of connective tissue
A
Ends in “sarcoma”
9
Q
Exceptions to the “oma” rule
A
- Lymphomas
- Melanomas
- Astrocytomas
- Seminomas
- Mesotheliomas (exposure to Asbestos)
- Blastomas (embryonic tissue, pediatric)
- ALL MALIGNANT
10
Q
Tumors derived form 3 germ layers
A
Teratomas or teratocarcinomas
- Usually in testes or ovaries
- Usually located midline
11
Q
Cancer grading is based on what?
A
- Degree of anaplasia
- # of proliferative cells
12
Q
Anaplasia is determined by what?
A
- Shape & irregularity of cells
- Large #s of atypical mitoses
- Nuclear pleomorphism
- Giant tumor cells
