Skin

Question 1

Primary Lesion

Answer 1

Initial presentation, arise from previously normal skin

Question 2

Secondary Lesion

Answer 2

Changes to a primary lesion

Question 3

Macule

Answer 3

Flat
<1cm
varies in color
Freckle, petechiae

Question 4

Patch

Answer 4

Flat
>/= 1 cm
irregularly shaped
Cafe au lait, vitiligo

Question 5

Papule

Answer 5

Palpable, firm
<1cm
circumscribed
flesh/red/brown
warts, moles

Question 6

Plaque

Answer 6

> =1cm
Elevated, firm, rough
Circumscribed
Psoriasis

Question 7

Nodule

Answer 7

Palpable, deep, firm
2>x>=1cm
usually round
Lipoma, skin cancers

Question 8

Tumor

Answer 8

> 2cm
deeper/firmer than plaque
hemangioma/tumor

Question 9

Wheal

Answer 9

Palpable
Irregular, transient, superficial edema
Urticaria(hives)

Question 10

Vesicle

Answer 10

<1cm
Palpable w/serous fluid
well circumscribed
Herpes/dew on rose petal

Question 11

Bulla

Answer 11

> 1cm
well circumscribed
Palpable w/ serous fluid
blisters, burns

Question 12

Pustule

Answer 12

Palpable w/ pus
well circumscribed
elevated, superficial, epidermal
acne

Question 13

Cyst

Answer 13

Nodule w/ liquid or semisolid material

Question 14

Erosion

Answer 14

Loss of superficial epidermis
Moist but doesn’t bleed or scar
atopic dermatitis

Question 15

Ulcer

Answer 15

Deeper loss of epidermis/dermis

Heals with scarring

Question 16

Fissure

Answer 16

Linear crack/break of epidermis to dermis

tine pedis

Question 17

Scale

Answer 17

Thickflake of exfoliated epidermis

psoriasis

Question 18

Crust

Answer 18

Dried residue of serum, pus or blood

Impetigo-honey colored crust

Question 19

Excoriation

Answer 19

Abrasion/scratch
Linear or round
scabies, dry skin

Question 20

Lichenification

Answer 20

Thickening/roughening of skin
Increased visibility of skin markings
dermatitis

Question 21

Atrophy

Answer 21

Thinning of skin w/ loss of normal markings
Shiny/translucent
Stretch marks

Question 22

Keliod

Answer 22

Hypertrophic scarring

Extends beyond injury’s border

Question 23

Petechia

Answer 23

0.1-0.3cm
blood outside vessel
round/irregular
deep red/purple red
infections/bleeding disorders
DOES NOT blanch

Question 24

Purpura

Answer 24

0.3-1cm
blood outside vessel
round/irregular
deep red/purple red
infections/bleeding disorders
DOES NOT blanch

Question 25

Ecchymosis

Answer 25

>1cm
"bruise"
blood outside vessels due to trauma
round/oval/irregular
purple>green, yellow, brown
does NOT blanch

Question 26

Cherry angioma

Answer 26

1-3mm
flat or raised
red
non-pulsatile
Seen on trunk
"wisdom lesion"
does NOT blanch

Question 27

Spider angioma

Answer 27

<2 cm
central body w/ "spider legs"
face, neck, arms, upper trunk
liver disease/pregnancy
DOES blanch

Question 28

Spider vein

Answer 28

very small-several inches
varies in shape
most often on legs
DOES blanch

Question 29

Telangectasia

Answer 29

Irregular lines secondary o capillary dilation
red
Basal cell, sun-damage, rosacea
DOES blanch

Question 30

Hemangioma

Answer 30

Irregular lesion secondary to capillary dilation
red
macule>plaque or nodule
"strawberry hemangioma"
DOES blanch

Question 31

Papulosquamous

Answer 31

papule with plaques and scales

Psoriases, lichen Plans, Pityriasis rosea

Question 32

Vesiculobullous Lesions

Answer 32

Visicles and bullae
herpes
Pemphigus vulgaris-Nikolsky’s sign