Derm reverse

Question 1

fungus, candida; hyphae and buds, spaghetti and meatballs

Answer 1

KOH

Question 2

Candida: Tx - Nystatin/Lotrimin cream QID x 14 days; if fails ketoconazole

Answer 2

Beefy red, sharp bordered rash in groin (infants), under breast folds with satellite lesions

Question 3

Cellulitis

Answer 3

Warm, erythematous, tender skin with possible induration or fluctuance

Question 4

Erysipelas

Answer 4

Distinct sharp raised demarcated border with fever, chills. Group A strep

Question 5

Herpes virus

Answer 5

Grouped vesicles on erythematous base

Question 6

Herpes zoster (if involved eye = herpes keratitis. NO steroids. get immediate ophthalmology referral)

Answer 6

Pain preceding vesicular rash in dermatomal pattern

Question 7

Impetigo. Tx = Mupirocin

Answer 7

Honey colored crusts on erythematous base around nose and mouth

Question 8

Scarlet fever (group A strep)

Answer 8

Strawberry tongue

Question 9

Urticaria

Answer 9

Pruritic raised erythematous plaques

Question 10

Varicella (chicken pox)

Answer 10

Dewdrops on rose petal, pustules and vesicles at different stages of healing

Question 11

Actinic keratosis

Answer 11

Flesh-colored, pink, or yellow-brown lesions with rough, sandpaper feel, at sun-exposed areas

Question 12

Seborrheic keratosis

Answer 12

Non-pruritic, raised, warty brown-black plaques, stuck onto skin feel greasy

Question 13

Basal cell CA

Answer 13

Raised pearly borders, telangiectasia, central ulcer

Question 14

Molluscum contagiosum

Answer 14

Pearly papule with umbilicated center

Question 15

Secondary syphilis (money spots); VDRL will confirm

Answer 15

Sexually active person with rash on palms and soles, general LAD

Question 16

Pityriasis rosea; Herald patch

Answer 16

Christmas tree pattern, erythematous papules with oval plaques with scaly itchy border. Rash preceded by large oval plaque with central clearing and scaly border

Question 17

Tinea (fungal infection); KOG prep = hyphae

Answer 17

Erythematic ring with scaly border and central clearing

Question 18

Onychomycosis. Tx - PO terbinafine

Answer 18

Thick, yellow, brittle nails

Question 19

Cradle cap - seborrheic dermatitis (tx in infants with baby shampoo, warm olive oil compress, mild hydrocortisone cream; adults - selenium sulfide shampoo)

Answer 19

Infant with erythematous, scaly crusty lesions at vertex of scalp

Question 20

Hand-foot-mouth disease. Coxsackievirus

Answer 20

Children <10yo with vesicles on pharynx, mouth, hands, feet, with NO ulceration

Question 21

Erythema infectiosum - “slapped cheek” “5th disease”

Answer 21

healthy looking <5yo with lace-like rash on both cheeks - red papules

Question 22

Scarlet fever

Answer 22

Fever, pharyngitis, “sandpaper rash” over face, neck trunk, and extremities

Question 23

Kawasaki’s disease; look for cardiac complications (myocarditis, pericarditis, arteritis, aneurysms)

Answer 23

High fever (up to 105) x 5 days then rash. May have conjunctivitis, cracking, lip fissures

Question 24

Rheumatic fever

Answer 24

Erythema marginatum

Question 25

Psoriasis

Answer 25

Silvery scaling plaques on extensor surfaces. Auspitz sign, Koebner;s phenomena

Question 26

Brownish pigmentation of lower legs

Answer 26

Chronic venous insufficiency

Question 27

Squamous cell carcinoma

Answer 27

actinic keratosis may progress to

Question 28

Pseudomonas

Answer 28

Organism causing hot tub folliculitis

Question 29

Lyme disease - Bull's eye rash

Answer 29

Erythema migrans

Question 30

Scabies

Answer 30

Pruritic, slightly raised tunnel in the epidermis with small papule

Question 31

Alopecia areata

Answer 31

Hair loss, oval shape, well-demarcated