Nomenclature: Terms

Question 1

Erosion caused by scratching, usually linear

Answer 1

Excoriations

-special lesion

Question 2

Firm edematous plaque resulting from infiltration of the dermis with fluid.

Answer 2

Wheal

-primary lesion

Question 3

collection of leukocytes and free fluid

Answer 3

Pustule

-primary lesion

Question 4

Abnormal formation of connective tissue implying dermal damage

Answer 4

Scar
-secondary lesion
(if growth of scar tissue expands beyond the borders of the original primary lesion then it is called a keloid)

Question 5

Linear loss of epidermis and dermis with sharply defined, nearly vertical walls.

Answer 5

Fissure

-secondary lesion

Question 6

circumscribed elevated solid lesion more than 0.5cm

Answer 6

Nodule

-primary lesion

Question 7

Small superficial keratin cyst with no opening

Answer 7

Milia

-special lesion

Question 8

lesion with a “bulls eye” appearance (3 colors)

Answer 8

Target Lesion

-special lesion

Question 9

circumscribed flat discoloration of any color

Answer 9

Macule

-primary lesion

Question 10

elevated solid lesion more than 0.5cm

Answer 10

Plaque

-primary lesion

Question 11

circumscribed lesion with a walled off lumen that may contain fluid or solid matter

Answer 11

Cyst

-primary lesion

Question 12

collection of dried serum and cellular debris

Answer 12

Crust (scab)

-secondary lesion

Question 13

narrow, tortuous channel produced by a parasite

Answer 13

Burrow

-special lesion

Question 14

plug of sebaceous and keratinous material lodged in the opening of a hair follicle

Answer 14

Comedo (comedones: plural)

-special lesion

Question 15

focal loss of epidermis and dermis, heals with scarring

Answer 15

Ulcer

-secondary lesion

Question 16

elevated solid lesion smaller than 0.5cm

Answer 16

Papule

-primary lesion

Question 17

circumscribed flat discoloration greater than 3-4cm

Answer 17

Patch

-primary lesion

Question 18

dilated superficial blood vessels

Answer 18

Telangiectasia

-special lesion

Question 19

circumscribed deposit of blood less than 0.5cm

Answer 19

Petechiae

-special lesion

Question 20

focal loss of epidermis, no scarring because it doesn’t penetrate below the dermoepidermal junction

Answer 20

Erosion

-secondary lesion

Question 21

area of thickening epidermis due to scratching often associated with hyperpigmentation

Answer 21

Lichenification

-special lesion

Question 22

circumscribed collection of free fluid up to 0.5cm in diameter

Answer 22

Vesicle

-primary lesion

Question 23

circumscribed collection of free fluid larger than 0.5cm in diameter

Answer 23

Bulla

-primary lesion