Derm infections

Question 1

MC sites of impetigo

Answer 1

face, limbs

Question 2

70% of impetigo cases are of this type

Answer 2

non-bulous (originally colonized by strep)

Question 3

Superficial skin infection extending into the cutaneous lymphatics

Answer 3

erysipelas

Question 4

MCC on the face and HX of recent Strep Pharyngitis (Step pyo: grpA beta hemolytic)

Answer 4

erisypelas

Question 5

local factors necessary such as:
Venous insufficiency 
Stasis ulcers
lymphadenectomy
Insect bites
Inflammatory dermatoses

Answer 5

erysipelas

Question 6

warm, edematous, well-demarcated shiny

plaque, streaky

Answer 6

erysipelas

Question 7

inflammation of the skin and subcutaneous tissues. does NOT involve fascia and muscles

Answer 7

cellulitis

Question 8

microrg’s causing cellulitis

Answer 8

Strep pyo, staph aur

Question 9

MC site of cellulitis

Answer 9

leg

Question 10

MC ocular complication of HZ opthalmicus

Answer 10

neuropathic keratitis (degen of cornea)

Question 11

Ramsey Hunt Syndrome is assoc with what condition

Answer 11

VZV infection of geniculate ganglion (vestibulocochlear VIII)

Question 12

what condition looks similar to fungus but does not improve with tx

Answer 12

CTCL cutaneous T cell lymphoma

Question 13

MC fungal med interaction

Answer 13

statins (cholesterol)

Question 14

3 things to always check bf treating fungal infection

Answer 14

1. med interactions
2. CBC
3. LFT’s

Question 15

MCC tinea pedis

Answer 15

T. rubrium

Question 16

MCC onychomycosis

Answer 16

T. rubrium

Question 17

what condition (and subtype) causes a secondary rash to appear at a distant site of the body

Answer 17

Tinea capitis - Id reaction of kerion type

Question 18

the 4 types of tinea capitis

Answer 18

Black Dot Type (non-inflammatory)
Kerion Type (inflammatory)
Seborrheic Dermatitis Type
Pustular Type

Question 19

which type of tinea capitis is commonly mis-dx’d as folliculitis

Answer 19

pustular tinea capitis AND tinea barbae

Question 20

which type tinea capitis is commonly mistaken for dandruff

Answer 20

seborrheic

Question 21

which type tinea capitis shows perifollicular pustules

Answer 21

seborrheic

Question 22

common sx of all forms of tinea capitis

Answer 22

occipital adenopathy

Question 23

MCC Tinea caipits

Answer 23

T. tonsurans

Question 24

what causes Tinea versicolor

Answer 24

overgrowth of yeast Pityrosporum ovale

Question 25

requirement sebum

Answer 25

Tinea versicolor

Question 26

Multiple small circular macules with fine powdery scale

Answer 26

Tinea versicolor

Question 27

Perleche

Answer 27

inflammation of the mouth corners caused most commonly by candidal infection

Question 28

Well-demarcated areas of erythema and maceration with satellite papules and pustules

Answer 28

intertrigo

Question 29

Abnormal immune response to normal Malassezia flora

Answer 29

seborrheic dermatitis (dandruff)

Question 30

additional consideration for seborrheic dermatitis

Answer 30

Parkinson's

Question 31

genital warts. member of Pox family. resolves on its own

Answer 31

Molluscum contagiosum

Question 32

genital warts. may lead to malignancy.

Answer 32

Condyloma acuminatum

Question 33

non-fluctuant, edematous, tender nail folds. Thickened, discolored nail plates with transverse ridges.

Answer 33

chronic paronychia

Question 34

term used for patients with a genetically mediated predisposition to excessive IgE mediated reactions

Answer 34

A triad: atopic dermatitis (ecsema), allergic rhinitis, asthma

Question 35

Dryness, a cardinal feature of AD

Answer 35

xerosis

Question 36

Pruritic vesicular eruption of the lateral aspects of hands & feet

Answer 36

dishydrosis

Question 37

Small rough patches of erythematous follicular plugging

Answer 37

keratosis pilaris

Question 38

Asympotmatic, hypopigmented, slightly elevated fine, scaling plaques with indistinct borders

Answer 38

pityriasis alba

Question 39

hemorrhagic vesicles, possible lymphadema and temperature

Answer 39

ecsema herpeticum

Question 40

skin thickening, exaggerated skin lines, hardening, Cardinal Sign of Chronic AD

Answer 40

lichen simplex chronicus

Question 41

Red to brown, hard, domeshaped nodules, localized nodular form of Lichen Simplex Chronicus

Answer 41

prurigo nodularis

Question 42

Small pinpoint excoriated papular lesions, Sometimes vesicular

Answer 42

scabies

Question 43

3 forms of lice infestation

Answer 43

pediculosis capitis, peiculosis pubis, pediculosis corporis

Question 44

Eczematous eruption on the lower legs, possible pitting edema

Answer 44

stasis dermatitis

Question 45

What causes Cayenne Pepper Staining? What is that called?

Answer 45

chronic statis dermatitis leading to hemosiderin staining. Called Schamburg's Disease

Question 46

What causes thickened, warty ankles? What is it called?

Answer 46

chronic stasis dermatosis, stasis papillomatosis

Question 47

2 types of contact dermatitis

Answer 47

allergic and irritant

Question 48

MC site of irritant contact dermatitis

Answer 48

hands

Question 49

What is Rhus dermatitis

Answer 49

allergic contact dermatitis from poison ivy, oak, sumac

Question 50

Linear papular vesicular scratch like lesions

Answer 50

allergic contact dermatitis (rhus)

Question 51

Circumscribed erythematous or white pruritic plaque

Answer 51

urticaria

Question 52

vasodilation followed by transudation of protein-rich fluid

Answer 52

urticaria

Question 53

Hyperproliferation of basal stem keratinocytes | i.e. red scaly skin

Answer 53

psoriasis

Question 54

Symmetrically distributed thickened plaques of erythema and silvery scale

Answer 54

chronic plaque psoriasis

Question 55

Numerous pinpoint – 1 cm plaques that develop classic scale & increase in diameter over time

Answer 55

guttate psoriasis (after strep pharyngitis or viral URI)

Question 56

Deep, red, smooth glistening plaques found in the intertriginous folds with

Answer 56

psoriasis inversus

Question 57

Koebner's phenomenon

Answer 57

Development of psoriasis at the site of skin trauma