Chapter 7: Skin Tumors

Question 1

The keratin-forming cells in the epidermis

Answer 1

keratinocytes

Question 2

What types of cells do most skin tumors arise from?

Answer 2

Keratinocytes or melanocytes

Question 3

Tough, insoluble fibrous protein in the outer layer of skin (and hair, nails, and horns)

Answer 3

Keratin

Question 4

Deepest layer of keratinocytes adjacent to the dermis

Answer 4

Basal cells

Question 5

Upper layer of keratinocytes that arise from the proliferation of basal cells.

Answer 5

Squamous cells

Question 6

Where are melanocytes located?

Answer 6

They are interspersed among the keratinocytes

Question 7

Cells that produce dark brown pigment (melanin) and are responsible for normal skin color.

Answer 7

Melanocytes

Question 8

What types of cells form birthmarks and moles?

Answer 8

Benign melanocytes

Question 9

What is a malignant melanocyte?

Answer 9

Melanoma

Question 10

What are benign keratinocyte tumors called?

Answer 10

Keratoses

Question 11

What are malignant keratinocytes called?

Answer 11

Basal cell or squamous cell carcinomas

Question 12

Most common locations on the body for melanomas to occur.

Answer 12

Face or back

Question 13

What is the most deadly skin cancer?

Answer 13

Melanoma

Question 14

What treatment is usually effectively cures basal cell and squamous cell skin cancers?

Answer 14

Surgery

Question 15

Small, crusted, scaly patches that develop from keratinocytes on sun-exposed skin; may develop into cancer (BCC or SCC) if untreated.

Answer 15

Actinic keratoses

Question 16

Freckle-like proliferation of
melanocytes in the skin that can develop on sun-exposed
skin, and may transform later into melanoma.

Answer 16

Lentigo maligna