Terms

Question 1

excoriation

Answer 1

traumatic lesion breaking the epidermis and causing a linear red mark (i.e., a deep scratch); often self inflicted

Question 2

lichenification

Answer 2

thickened and rough skin characterized by prominent skin markings; usually the result of repeated rubbing

Question 3

macule

Answer 3

flat, circumscribed area, 5mm it is a patch

Question 4

papule

Answer 4

elevated or dome- or flat-top lesion 5mm diameter it is a nodule

Question 5

plaque

Answer 5

elevated flat-top lesion, usually >5mm diameter

Question 6

pustule

Answer 6

discrete, pus-filled raised lesion

Question 7

scale

Answer 7

dry, horny, platelike excrescence; usually result of imperfect cornification

Question 8

vesicle

Answer 8

fluid-filled raised area 5mm is referred to as a bulla (blister refers to both)

Question 9

acantholysis

Answer 9

loss of intercellular adhesions of keratinocytes

Question 10

acanthosis

Answer 10

diffuse epidermal hyperplasia

Question 11

dyskeratosis

Answer 11

abnormal keratinization occurring prematurely within individual cells or groups of cells below the stratum granulosum

Question 12

hyperkeratosis

Answer 12

hyperplasia of stratum corneum, often associated with an abnormal amount of keratin

Question 13

lintiginous

Answer 13

linear melanocyte proliferation along the epidermal basal layer; can occur as a reactive change or a melanocyte neoplasm

Question 14

papillomatosis

Answer 14

surface elevation caused by hyperplasia and enlargement of dermal papillae

Question 15

parakeratosis

Answer 15

keratinization characterized by retention of nuclei in stratum corneum; normal on squamous mucosal membranes

Question 16

spongiosis

Answer 16

intercellular edema of the epidermis