PP Clues - Dermatology

Question 1

1st Degree Burns

Answer 1

Red - Epidermis

Question 2

2nd Degree Burns

Answer 2

Blisters - Hypodermis

Question 3

3rd Degree Burns

Answer 3

Painless Neuropathy - Dermis

Question 4

Diseases with palm and sole rashes

Answer 4

TSS
RMSF
Cocksackie A (hand-foot-mouth disease)
Kawasaki
Scarlet Fever
Staph - Scalded Skin Syndrome
Syphilis

Question 5

Erythema Multiforme

Answer 5

Target lesions

d/t HSV, Phenytoin, Barbituates, Sulfas

Question 6

Stevens Johnson Syndrome

Answer 6

Erythema Multiforme Major

Mouth, Eye, Vagina - >1 mucosal surface

Question 7

Toxic Epidermal Necrolysis

Answer 7

Stevens Johnson with skin sloughing

Question 8

Pemphigus Vulgaris

Answer 8

Ab against desmosomes
Circular immunofluorescence 
In epidermis
Oral lesions
Nikolsky sign

Question 9

Bullous Pemphigoid

Answer 9

Ab against hemidesmosomes
Linear immunofluorescence
Subepidermal
"Floating" keratinocytes
Eosinophils

Question 10

Eczema

Answer 10

Dry, flaky dermatitis in flexor creases

Question 11

Nummular Dermatitis

Answer 11

Circular eczema

Question 12

Sponglotic Eczema

Answer 12

Weeping eczema - scratching causes oozing

Question 13

Lichenification

Answer 13

Scratching –> thick, leathery skin

Question 14

Pityriasis Rosea

Answer 14

Herald patch that follows skin lines
“Christmas tree pattern”
TX = sunlight

Question 15

Lichen Planus

Answer 15

Polygonal pruritic purple papules

Question 16

Scabies

Answer 16

Linear excoriation “burrows” in webs of fingers, toes, belt line (sarcoptes feces)

Question 17

UV-A causes

Answer 17

Aging

Question 18

UV-B causes

Answer 18

Burns and cancer

Question 19

ABCD prognosis of skin cancer

Answer 19

Asymmetric
irregular Border
Color differences
>4mm Diameter

Question 20

Clark Level

Answer 20

Invasion of melanoma

Question 21

Breslow’s Classification

Answer 21

Depth of melanoma

Question 22

Location of Malignant Melanomas

Answer 22

Men = back
Females = leg

Question 23

Precursor of Malignant Melanoma

Answer 23

Hutchison’s freckle

Question 24

Types of Malignant Melanoma

Answer 24

Superficial spreading - MC, flat, brown
Nodular - worst prognosis, black, dome shaped
Lentigo malignant melanoma - elderly, fair skin
Acral lentigous - AIDS, dark skin

Question 25

Location of Squamous Cell Carcinoma

Answer 25

Flat, flaky stuff on lower face | Keratin pearls

Question 26

Precursor of Squamous Cell Carcinoma

Answer 26

Actinic keratosis (red scaly plaque)

Question 27

Types of Squamous Cell Carcinoma

Answer 27

``` Bowen's disease (SCC in situ on uncircumsized penis) Verrucous carcinoma (wart on foot) ```

Question 28

Location of Basal Cell Carcinoma

Answer 28

Pearly papules on upper face Palisading nuclei Good prognosis

Question 29

Types of Basal Cell Carcinoma

Answer 29

Nodular (waxy nodule with central necrosis) Superficial (red scaly plaques - like eczema) Pigmented (looks like melanoma) Sclerosing (yellow waxy plaques)

Question 30

Acne Rosacea

Answer 30

Blush all the time | Worse with stress and alcohol

Question 31

Brown Recluse Spider bite

Answer 31

Painful black necrotic lesion

Question 32

Cellulitis

Answer 32

Warm, red leg

Question 33

Cutaneous Anthrax

Answer 33

Painless black necrotic lesion

Question 34

Decubitus Ulcer

Answer 34

Bedsore

Question 35

DVT

Answer 35

Blood clot in veins | Associated with hypercoagulable state

Question 36

Erysipelas

Answer 36

``` Shiny red Raised Doesn't blanch Usually on face Associated with S. pyogenes ```

Question 37

Ichthyosis

Answer 37

Gradual lizard skin

Question 38

Miliaria

Answer 38

Heat rash | Burning, itching papules on trunk

Question 39

Molluscum Contagiosum

Answer 39

``` Fleshy papules with central dimple Pox virus (STD) ```

Question 40

Psoriasis

Answer 40

Silver scales on extensors Nail pitting Differentiated too fast Worse with stress Auspitz sign (remove scale - pinpoint bleeding) Koebner's phenomenon - lesions at sites of skin trauma

Question 41

Pyogenic Granuloma

Answer 41

Vascular nodules at site of previous injury

Question 42

Seborrheic Dermatitis

Answer 42

Dandruff in eyebrows, nose, behind ears

Question 43

Seborrheic Keratosis

Answer 43

Rubbery warts with aging | Greasy

Question 44

Thrombophlebitis

Answer 44

Vein inflammation with thrombus

Question 45

Vitiligo

Answer 45

White patches | Anti-melanocyte Ab

Question 46

Xeroderma Pigmentosa

Answer 46

Bad DNA repair

Question 47

Erythema Chromica Migrans

Answer 47

Lyme disease (solitary lesion that spreads)

Question 48

Erythema Infectiosum

Answer 48

5th disease Slapped cheeks d/t Parvovirus B19

Question 49

Erythema Marginatum

Answer 49

Rheumatic fever (red margins)

Question 50

Erythema Nodosum

Answer 50

``` Fat inflammation (painful red nodules on legs) Sarcoidosis ```

Question 51

Erythema Toxicum

Answer 51

Newborn benign rash | Looks like flea bites with eosinophils