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Flashcards in Dermatology Deck (53)
1

What are 1st degree burns?

Red (epidermis)

2

What are 2nd degree burns?

Blisters (hypodermis)

3

What are 3rd degree burns?

Painless neuropathy (dermis)

4

What disease have palm and sole rash?

"TRiCKSSS"
Toxic Shock Syndrome
Rocky mountain spotted fever
Coxsackie A: Hand-Foot-Mouth disease
Kawasaki
Scarlet fever
Staph Scaled Skin
Syphilis

5

What is Erythema Multiforme?

Target lesions (viral, drugs)

6

What is Stevens Johnson syndrome?

Erythema Multiforme Major (mouth, eye, vagina)

7

What is Toxic Epidermal Necrolysis?

Stevens Johnson w/skin sloughing

8

What is Pemphigus Vulgaris?

Ab against desmosones=> circular immunofluoresence, in epidermis, oral lesions, + Nikolsky sign

9

What is Bullous Pemphigoid?

Ab against hemidesmosomes => linear immunofluorescence, subepidermal, "floating" keratinocyytes, eosinophils

10

What is Eczema?

Dry flaky dermatitis in flexor creases "itch that rashes"

11

What is Nummular dermatitis?

Circular eczema

12

What is Spongiotic eczema?

Weeping eczema: scratching causes oozing "like a sponge"

13

What is Lichenification?

Scratching => thick leathery skin

14

What is Pityriasis Rosea?

Herald patch that follows skin lines (Tx: sunlight) "C mass tree pattern"

15

What is Lichen Planus?

Polygonal pruritic purple papules

16

What is Scabies?

Linear excoriation "burrows" in webs of fingers, toes, belt line (Sarcoptes feces)

17

What does UV-A cause?

Aging

18

What does UV-B cause?

Burns and cancer

19

What are the ABCD's that indicate worse prognosis of skin cancer?

Assmetric
Irregular Borders
Color differences
> 4mm Diameter

20

What does the Clark level tell you?

Invasion of melanoma

21

What does Breslow's classification tell you?

Depth of melanoma

22

Where are Malignant Melanomas usually found?

Males: back
Females: leg

23

What is the precursor od a Malgnant Melanoma?

Hutchison's freckle

24

What are the types of Malignant Melanomas?

Superficial spreading: most common, flat brown
Nodular: worst prognosis, black, dome shape
Lentigo maligna melanoma: elderly pts, fair-skin
Acral lentigous: AIDS pts, dark skin

25

Where are Squamous cell carcnomas usually found?

Flat flaky stuff on lower face, keratin pearls

26

What is the precursor of Squamous Cell carcinoma?

Actinic keratosis (red scaly plaque)

27

What are the types of Squamous Cell carcinoma?

Bowen's disease: SCC in situ on uncircumcised penis dorsum
Verrucous carcinoma: wart on foot

28

Where are Basal Cell carcinomas usually found?

Pearly papules on upper face, palisading nuclei, good prognosis

29

What are the types of Basal Cell carcinomas?

Nodular: waxy nodule w/ central necrosis
Superficial: red scaly plaques,mlike eczema
Pigmented: looks like melanoma
Sclerosing: yellow waxy plaques

30

What is Acne Rosacea?

Blush all the time, worse w/ stress/ alcohol

31

What is a Brown Recluse Spider Bite?

Painful black necrotic lesion

32

What is Cellulitis?

Warm red leg

33

What is a Cutaneous Anthrax?

Painless black necrotic lesion

34

What is a Decubitus Ulcer?

Bedsore

35

What is a DVT?

Blood clot in veins, associated w/ hypercoagulable state

36

What is Erysipelas?

Shiny red, raised, does not blanch, usually on face, associated w/Strep pyogenes

37

What is Icthyosis?

Gradual lizard skin

38

What is Miliaria?

"Heat rash": burning, itching papules on trunk

39

What is Molluscum Contagiosum?

Fleshy papules w/ central dimple, pox virus (STD)

40

What is Psoriasis?

Silver scales on extensors, nail pitting, differentiated too fast, worse w/ stress

- Auspitz sign: remove scale => pinpoint bleeding
- Koebner's phenomenon: lesions at sites of skin trauma

41

What is a pyogenic granuloma?

Vascular nodule at site of previous injury

42

What is a Seborrheic Dermatitis?

Dandruff in eyebrows, nose, behind ears

43

What is Seborrheic Keratosis?

Rubbery warts with aging, greasy

44

What is Thrombophlebitis?

Vein inflammation w/ thrombus

45

What is Vitiligo?

White patches, anti melanocyte Ab

46

What is Xeroderma Pigmentosa?

Bad DNA repair

47

What is Erythema Chronic Migrans?

Lyme disease (solitary lesion that spreads)

48

Whatbis Erythema Infectiosum?

Fifth disease "slaped cheeks" due to Parvovirus B19

49

What is Erythema Marginatum?

Rheumatic fever (red margins)

50

What is Erythema Multiforme?

Target lesions due to HSV, Phenytoin, Barbs, Sulfas

51

What is Erythema Multiforme Major?

Stevens Johnson syndrome (>1 mucosal surface)

52

What is Erythema Nodosum?

Fat inflammation (painful red nodules on legs), sarcoidosis

53

What is Erythema Toxicum?

Newborn benign rash (looks like flea bites w/ eosinophils)