Dermatology Word Associations

Procainamide, hydralazine & rash

Lupus-type eruptions

Photosensitive rash

TCN, Sulfa drugs

KOH

Fungus, Candida; Hyphae & buds, spaghetti & meatballs

Gram stain

Bacterial infections

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

Candida: Tx: Nystatin/Lotrimin cream QID x14d; if fails Ketoconazole

Warm, erythematous, tender skin with possible induration or fluctuance

Cellulitis

Red, less distinct borders. Coral red fluorescence under Wood's lamp

Erythrasma

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

Erysipelas

Grouped vesicles on erythematous base

Herpes virus

Infant or pediatric w/ grouped vesicles on thumb or "tapioca" vesicles on thumb

Herpetic whitlow

Pain preceding vesicular rash in dermatomal pattern

Herpes Zoster (if involved eye = herpes keratitis. NO steroids. Get immediate ophthalmology referral)

Hx URI the palpable purpuric rash to buttocks, posterior thighs

HSP (Hx post Strep A infection)

Honey colored crusts on erythematous base around nose & mouth

Impetigo. Tx = Mupirocin

Small white papules on diffusely red base on buccal mucosa

Koplick spots - Rubeola (Measles). Spots occur before rash

Cough, coryza, conjunctivitis

Rubeola (Measles)

Pastia's lines, positive ASO titer

Scarlet fever (Grp A Strep)

Strawberry tongue

Scarlet fever (Grp A Strep)

Pruritic raised erythematous plaques

Urticaria

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

Varicella (Chicken Pox)

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

Actinic Keratosis

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

Seborrheic keratosis

Flat brown spots with sharp borders on dorsum of hand

Lentigines

Erythematous, dome-shaped nodule with central plug

Keratoacanthoma

Raised pearly-borders, telangiectasia, central ulcer

Basal cell Ca

Pearly papule with umbilicated center

Molluscum contagiosum

Sexually active person w/ rash on palms & soles, general LAD

Secondary syphilis (Money spots); VDRL will confirm

Scabies & Pediatrics

NO LINDANE (KWELL). Permethrin (Elimite) is drug of choice

Christmas tree pattern, erythematous papules w/ oval plaues w/ scaly itchy border. Rash preceded by lagre oval plaque w/ central clearing & scaly border

Pityriasis rosea; Herald patch

Hypopigmented lesions, white, scaly. Gets worse w/ tanning or sun exposure

Pityriasis Alba

Erythematic ring with scaly border & central clearing

Tinea (fungal infection); KOH prep = hyphae

spaghetti & meatballs

Tinea (fungal infection

Thick, yellow, brittle nails

Onychomycosis. Tx = PO Terbinafine

Infant w/ erythematous, scaly crusty lesions at vertex of scalp

Cradle cap - seborrheic dermatitis (Tx in infants w/ baby shampoo, warm olive oil compress, mild Hydrocortisone cream; Adults - selenium sulfide shampoo)

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

Hand-Foot-Mouth disease. Coxksackie Virus

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

Erythema infectiosum "Slapped cheek", "5th Dz".

Pediatric with high fever then after fever macular rash over trunk and neck. (rash after defervesence)

Roseola infantum (Herpesvirus); Motrin, symptomatic treatment

Truncal Rash in pediatric after fever

Roseola infantum (Herpesvirus); Motrin, symptomatic treatment

Fever, pharyngitis, "sandpaper" rash over face, neck, trunk, extremities

Scarlet Fever

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

Kawasaki's Disease; look for cardiac complications (myocarditis, pericarditis, arteritis, aneurysms)

Erythema marginatum

Rheumatic Fever

Silvery scaling plaques on extensor sensors. Ausptiz sign, Koebner's phenomena

Psoriasis

Rat bite erosions on XR

Psoriatic arthritis

Dark skinned person with "whitening or lightening" of skin. Hx pernicious anemia or other autoimmune disease

Vitilligo. Skin biopsy to diagnose