Pediatric Dermatoses

Question 1

Salient features:
honey colored- - yellow crusts
on exposed parts of the body-face, beneath the nasal area, hands, neck and extremities

Answer 1

Impetigo contagiosa

Question 2

bacterial agent of impetigo contagiosa

Answer 2

S. aureus and S.

Question 3

treatment for Impetigo contagiosa

Answer 3

Cloxacilin
Cephalexin
mupirocin

Question 4

differentials for impetigo

Answer 4

irritated type contact dermatitis
tinea facei
herpes simplex

Question 5

caused by M. leprae
hypopigmented or reddish lesion with sensory loss
chronicity

Answer 5

Hansen’s disease

Question 6

Ddx Leprosy

Answer 6

Psoriasis
Tina Facei
Contact uriticaria

Question 7

Treatment Leprosy

Answer 7

MDT:

Rifampicin, Clofazimine, Dapsone

Question 8

Pearly smooth nodule, non itchy, flesh colored with central umbilication in face, trunk and extremities, caused by pox virus

Answer 8

molluscom contagiosum

Question 9

Ddx molluscom contagiosum

Answer 9

verruca
millia
fibroma

Question 10

mode of transmission of molluscom contagiosum

Answer 10

skin to skin contact

Question 11

treatment for molluscom contagiosum

Answer 11

imiquimod (topical)
0.05% tretinoin
curettage
cryotherapy

Question 12

elevated rough grayish papule. inc in size every time when tried to nick out.
increased by koebnerization
HPV types 1-4 ( percutaneous warts)

Answer 12

Verruca vulgaris

Question 13

Tiny punctate black dots on wart surface representing thrombosed capillaries

Answer 13

verruca vulgaris

Question 14

Ddx Verruca vulgaris

Answer 14

dermatofibroma
sebaceous cyst
nevus sebaceous

Question 15

Treatment of verruca vulgaris

Answer 15

light cryotherapy
topical salicylic acid
imiquimod
electrodessication

Question 16

Ddx varicella

Answer 16

acne vulgaris
drug reactions
folliculitis

Question 17

low grade fever, malaise, headache

delicate vesicles on a erythematous base

Answer 17

varicella

Question 18

incubation period of varicella

Answer 18

10 -21 days

Question 19

susceptible age group for varicella

Answer 19

16-25

Question 20

measles vs. varicella

Answer 20

measles : top to down

varicella: central to outwards

Question 21

treatment of varicella

Answer 21

ancyclovir 500 mg every 8 hrs X 10 days ( neonatal )

Acyclovir 20 mg/kg qid X 5 days ( child)

Question 22

Ddx for herpes zoster

Answer 22

comedones
contact dermatitis
multiple folliculitis

Question 23

Have a history of chicken pox
etiologic agent: varicella zoster
grouped vesicles following dermatomal distribution

Answer 23

Herpes zoster

Question 24

Treatment for herpes simplex

Answer 24

acyclovir: 800 mg 5X/daily
Valcyclovir: 1000 mg
Famciclovir: 500 mg 3x/daily for 7 days

Question 25

Papules with central punctum appear on exposed areas of arms and legs

Answer 25

mosquito bites

Question 26

Ddx scabies

Answer 26

papular urticaria drug reactions contact dermatitis

Question 27

nocturnal pruritus multiple excoriations and impetiginization pruritic erythematous papules distributed in soft warm and moist areas, wrist areas, armpit, inframammary area, umbilical, inner thigh, scrotal and buttocks areas

Answer 27

scabies

Question 28

Treatment scabies

Answer 28

Permethrin 5% lotion Crotamiton: 10% apply for 3-5 days Take care of fomites

Question 29

Ddx Tinea capitis

Answer 29

scalp psoriases seborrheic dermatitis impetigo contagiosa

Question 30

broken off stumps of hairs in rounded eryhtematous patches where there are scales, crusts or pustules and few hair

Answer 30

tinea capitis

Question 31

treatment for tinea capitis

Answer 31

``` oral antifungals Griseofulvin 10mg/kg/day terbinafine 10 mg/kg/day itraconazole 5mg/kg/day 4-6 weeks ketoconazole 5 mg/kg/day 4-6 weeks ```

Question 32

Ddx atopic dermatitis

Answer 32

irritant type contact dermatitis tinea facei seborrheic dermatitis

Question 33

pruritic itch that forms rashes flexural lichenification in older children, facial and extensor involvement in infancy erythematous papules that coalesce to form plaques distributed on the face and intertriginous area with some excoriation

Answer 33

atopic dermatitis

Question 34

treament of atopic dermatitis

Answer 34

hydration white petrolatum, urea, lactic acid, moisturizers itching, use antihistamines topical steroids topical immunomodulators

Question 35

Ddx seborrheic dermatitis

Answer 35

tinea capitis psoriasis contact dermatitis

Question 36

chronic inflammatory, loose, dry, moist, greasy scales common site: scalp ( areas of prominent sebaceous glands lipophilic yeast ( Malassezia spp)

Answer 36

seborrheic dermatitis

Question 37

Treatment of seborrheic dermatitis

Answer 37

corticosteroid cream | for scalp: selenium sulfide shampoo, tar, zinc pyrithione

Question 38

Ddx Nummular eczema

Answer 38

pityriasis rosea allergic vasculitis contact dermatitis

Question 39

Primary lesion are discrete coin-shaped erythematous, vesicular or crusted plaques legs are favored areas chronic and relapsing may be associated with atopic dermatitis

Answer 39

nummular eczema

Question 40

Treatment of nummular eczema

Answer 40

topical antimicrobials | potent corticosteroids creams oral antihistamines, moisturizers