Ch12: Neoplasia Part II Flashcards Preview

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Flashcards in Ch12: Neoplasia Part II Deck (12):
1

What are the 3 main categories of neoplasms?

1. Benign
2. Low malignant potential
3. Malignant

2

Classification criteria for benign vs. malignant? (5)

Growth Characteristics
Rate of Proliferation and Cell Death
Differentiation
Invasion
Metastasis

3

Differentiate benign and malignant based on growth pattern?

Benign: Expansive
Malignant: Infiltrative

4

Differentiate benign and malignant based on rate of growth

Benign: Slow
Malignant: fast

5

Differentiate benign and malignant based on differentiation?

Benign: Very well differentiated
Malignant: Poorly differentiated to well

6

Differentiate benign and malignant based on metastasis?

Benign: none
malignant: typical

7

What are the two types of benign neoplasms based on histogenesis?

Benign epithelial neoplasm
Benign mesenchymal neoplasm

8

What are the four types of benign neoplasms based on histogenesis and cellular features?

Malignant epithelial neoplasm: Carcinoma
Malignant mesenchymal neoplasm: Sarcoma
Malignant neoplasm of lymphoid cells: Lymphoma
Malignant neoplasm of blood elements: Leukemia

9

Where do leukemias arise?
What will you see?

Within the marrow
see malignant cells within the blood

10

Where do lymphomas arise?

Lymph node
see malignant cells in tissues

11

A squamous cell carcinoma appears what color?
What other features? (4)

Eosinophilic: Pink

Keratin: Keratin pearl
Dark nucleus
IC clear spaces
IC bridges

12

Adenocarcinoma appear how?

1. Acentral nuclei
2. no desmosomes
3. Forms glands with lumens
4. Keratin