Chapter 7: Skin Tumors Flashcards

1
Q

The keratin-forming cells in the epidermis

A

keratinocytes

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2
Q

What types of cells do most skin tumors arise from?

A

Keratinocytes or melanocytes

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3
Q

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

A

Keratin

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4
Q

Deepest layer of keratinocytes adjacent to the dermis

A

Basal cells

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5
Q

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

A

Squamous cells

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6
Q

Where are melanocytes located?

A

They are interspersed among the keratinocytes

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7
Q

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

A

Melanocytes

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8
Q

What types of cells form birthmarks and moles?

A

Benign melanocytes

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9
Q

What is a malignant melanocyte?

A

Melanoma

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10
Q

What are benign keratinocyte tumors called?

A

Keratoses

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11
Q

What are malignant keratinocytes called?

A

Basal cell or squamous cell carcinomas

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12
Q

Most common locations on the body for melanomas to occur.

A

Face or back

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13
Q

What is the most deadly skin cancer?

A

Melanoma

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14
Q

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

A

Surgery

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15
Q

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

A

Actinic keratoses

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16
Q

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

A

Lentigo maligna