Skin Lesions

Question 1

Acne Vulgaris

Answer 1

chronic inflammatory disease of pilosebaceous follicles; comedones, papules, pustules

Question 2

Open comedones

Answer 2

black-heads, flat or slightly elevated papule with blackened keratin

Question 3

Closed comedones

Answer 3

white-heads, 1mm papules

Question 4

Papules and postules size

Answer 4

1-5 mm, caused by inflammation

Question 5

Location of acne vulgaris

Answer 5

face, chest, back, and shoulders

Question 6

Atopic dermatitis

Answer 6

chronic, relapsing, pruritic condition that tends to run in families

Question 7

Sxs of atopic dermatitis

Answer 7

intense pruritis leading to excoriated skin lesions and lichenification

Question 8

Location of atopic dermatitis

Answer 8

flexural surfaces, antecubital fossa, popliteal fossa, face, extremities

Question 9

Appearance of acute atopic dermatitis

Answer 9

erythema, vesicle, bullae, crusting

Question 10

Appearance of subacute atopic dermatitis

Answer 10

scaly plaques, papules, round erosions, crust

Question 11

Appearance of chronic eczema

Answer 11

lichenification, scaling, hyper- and hypopigmentation

Question 12

Seborrheic dermatosis

Answer 12

ranges from dandruff to fulminant rash; dryness, pruritus, erythema

Question 13

Seborrheic keratosis

Answer 13

“stuck-on” waxy appearance that may appear verrucous, well circumscribed

Question 14

Dermatofibroma

Answer 14

firm papules or nodules; may be flesh, pink, brown, red or black; typically on extremities

Question 15

“Fitzpatrick sign”

Answer 15

squeezing margin causes dimple, confirms dermatofibroma

Question 16

Rosacea

Answer 16

chronic inflammatory condition with relapsing course; extrafacial involvement is rare, often spares nasolabial folds

Question 17

Rosacea appearance

Answer 17

facial flushing and localized erythema, telangiectasias, papules, pustules

Question 18

Sebaceous cyst

Answer 18

wall composed of squamous epithelium containing keratin or lipid-rich debris

Question 19

Nevus

Answer 19

arises during childhood, adulthood, may darken during pregnancy

Question 20

Erythema Multiforme

Answer 20

targe lesions, well-defined, circular, erythematous macules or papules, associated with HSV, mycoplasma, group A strep, and EBV

Question 21

Eruptive xanthoma

Answer 21

abrupt onset, pruritis or pain may be present; red, firm papules

Question 22

Dermatomyositis

Answer 22

multiple skin changes possible; may include fatigue, malaise, myalgias, cardiac, resp sxs

Question 23

Heliotrope rash

Answer 23

violaceous edematous periorbital erythema

Question 24

atrophic dermal papules

Answer 24

scaly, flat-topped papules on dorsal MCP

Question 25

Nail fold telangiectasia

Answer 25

erythema and telangectasia at base of nails with prominent capillary loops

Question 26

Shawl sign

Answer 26

photoexacerbated macular of upper back and posterior neck and shoulders

Question 27

Actinic keratosis

Answer 27

pre-cancerous lesions on sun-exposed areas, may progress to SCC, white to yellow surface scale

Question 28

Solar lentigo

Answer 28

benign pigmented lesion related to UV radiation; smooth, flat macules

Question 29

Basal cell carcinoma

Answer 29

most common cancer of skin, M>W, often on a sun exposed areas

Question 30

Basal cell carcinoma appearance

Answer 30

smooth pearly papule with rolled borders and telangiectasia

Question 31

Infiltrating BCC

Answer 31

slightly raised or depressed, indurated, thin scar-like plaque with possible crust

Question 32

Superficial BCC

Answer 32

well defined red patch or thin plaque with or without scale, crust, rolled borders; expands horizontally

Question 33

ABCDEs

Answer 33

Asymmetry, Borders, Color, Diameter, Evolution

Question 34

Cutaneous SCC

Answer 34

commonly appear on sun exposed areas as a hyperkeratotic papule or nodule, variable appearance

Question 35

Molluscum contagiosum

Answer 35

benign, self-limited eruption of skin lesions caused by a poxvirus infection

Question 36

SJS

Answer 36

caused by drugs, immediate reaction that can advance to TEN

Question 37

TEN

Answer 37

widespread involvement, skin sloughing; risk of dehydration, hypernatremia and spesis

Question 38

Subungual acral lentiginous melanoma

Answer 38

sxs of tan, darkened, black nails; deadly melanoma

Question 39

Location of acral lentiginous melanoma

Answer 39

palms, soles, under nails in people of color