Primary Skin Lesions

Question 1

Circumscribed change in skin color that is flush with the surrounding skin. Lesion is <1.0 cm in diameter.

Answer 1

Macule

Question 2

Circumscribed change in skin door that is flush with the surrounding skin. Lesion is >1.0 cm in diameter.

Answer 2

Patch

Question 3

A solid or cystic elevation <1.0 cm in diameter.

Answer 3

Papule

Question 4

A solid or cystic elevation >1.0 cm but <2.0 cm in diameter.

Answer 4

Nodule

Question 5

A solid or cystic elevation >2.0 cm in diameter.

Answer 5

Tumor

Question 6

An elevated lesion that is >1.0 cm in diameter.

Answer 6

Plaque

Question 7

Desiccated, thin plates of cornfield epidermal cells that form flakes on the skin surface.

Answer 7

Scale

Question 8

Circumscribed, flat-topped, firm elevation of skin with a well-demarcated and palpable margin.

Answer 8

Wheal

Question 9

Circumscribed, elevated lesion containing clear serous or hemorrhagic fluid that is <1 cm in diameter.

Answer 9

Vesicle

Question 10

Circumscribed, elevated lesion containing clear serous or hemorrhagic fluid that is >2 cm in diameter.

Answer 10

Bulla

Question 11

A vesicle containing purulent exudate.

Answer 11

Pustule

Question 12

A depression from the surface of the skin with underlying loss of epidermal or dermal substance.

Answer 12

Atrophy

Question 13

A depression from the surface of the skin with aloes of all or part of the epidermis.

Answer 13

Erosion

can also be a secondary lesion

Question 14

A depression from the surface of the skin with a loss of the entire epidermis and at least some of the dermis.

Answer 14

Ulceration