skin lesions

Question 1

annular

Answer 1

circular, begins in center and spread to periphery

Question 2

confluent

Answer 2

lesions running together

“hives”

Question 3

discrete

Answer 3

-distinct individual lesions
-separate
“acne”

Question 4

gyrate

Answer 4

• spiral

- snake-like

Question 5

linear

Answer 5

line/streak

Question 6

zosteriform

Answer 6

linear arrangement along unilateral route

Question 7

grouped

Answer 7

clusters of lesions

Question 8

target

Answer 8

• concentric rings of color in lesions

- resembles iris of eye

Question 9

polycyclic

Answer 9

• annular lesions grow together

- psoriasis

Question 10

macule

Answer 10

-only color change
-flat
<1cm

Question 11

patch

Answer 11

-macule >1cm
“cafe au lait”
“vitiligo”

Question 12

nodule

Answer 12

-solid
-elevated
-hard or soft
>1cm
“xanthoma”

Question 13

tumor

Answer 13

• larger than few cm in diameter
• firm or soft
• lipoma

Question 14

papule

Answer 14

-solid, elevated
>1 cm
-thickening of skin
"wart"
"mole"

Question 15

plaque

Answer 15

-plateaulike
-disk shaped lesion
-psoriasis
“lichen planus”

Question 16

wheal

Answer 16

-raised
-irregular shape
“mosquito bite”

Question 17

urticaria

Answer 17

“hives”

-wheals coalesce and form extensive rxn

Question 18

vesicle

Answer 18

-elevated cavity with free fluid

“blister”

Question 19

bulla

Answer 19

> 1cm

• single chambered
• rupture easily
• burns

Question 20

cyst

Answer 20

• encapsulated fluid filling cavity
• largely elevated
• sebaceous cyst

Question 21

pustule

Answer 21

-pus in cavity
-elevated
“acne”

Question 22

crust

Answer 22

-dried out exudate when vesicles/pustules burst or dry up

“scab”

Question 23

scale

Answer 23

-flakes of skin
-silvery/white
-compact
“eczema or dry skin”

Question 24

fissure

Answer 24

-linear cracks with abrupt edges
-dry or moist
“cheilosis”

Question 25

ulcer

Answer 25

• deeper depression into dermis

- irregular shape

Question 26

erosion

Answer 26

• shallow scooped out depression
• superficial
• epidermis lost

Question 27

excoriation

Answer 27

-self inflicted
-superficial
-intense scratching
insect bites

Question 28

scar

Answer 28

• CT replacing lost tissue
• after surgery
• acne scars

Question 29

lichenification

Answer 29

-prolonged intense scratching increase thickness of skin and tightly packed papules

Question 30

atrophic scar

Answer 30

• resulting skin level depressed
• thinning of epidermis
• striae

Question 31

keloid

Answer 31

• benign scar tissue beyond sites of original injury
• appears smooth
• rubbery, shiny, firm
• from burns/tattoos/surgery
• located ear lobes, back of neck, scalp, chest, back