Dermatology (To Be Sorted)

Question 1

What are causes of desquemating rash

Answer 1

kawasakiscarlet fever - as rash fades

Question 2

What is the rash associated with Scarlet fever?

Answer 2

Sandpaperblanches with pressurealong flexor creases - anticubital, axillary, inguinal -Pastia LinesDesquemation as rash fades

Question 3

if you have a baby with intractable severe seborrheic dermatitis, what should you consider as alt Dx

Answer 3

Histiocytosis

Question 4

how do you treat seborrjeic dermatitis?

Answer 4

frequent washingcan apply vaseline to soften itsoft brush to brush offcan try ketoconazole shampoo or cream twice a week for 2 weeks

Question 5

baby has a raise, dark brown oval area on their leg. Some hairs are noted to be present. Dx and mgnt

Answer 5

Congenital melanocytic Neviremove in puberty bc of melanoma risk

Question 6

what is the risk of melanoma in child with giant melanocytic nevi

Answer 6

2-10%recommend sx

Question 7

if you have a baby with multiple hemamgiomas, wha investigation should you do?

Answer 7

AUS to look for liver hemangiomas

Question 8

what are risk factors for hemangiomas

Answer 8

femaleprematurelow BWmultiple gestation

Question 9

by what age shoul an hemagioma grow until?

Answer 9

12 monthplateau phase 12-18 moregression 18m to 9-10 yrs50% have lasting skin changes

Question 10

what % of children will have residual skin changes post hemagioma?

Answer 10

50%

Question 11

when do you worry about hemagiomas

Answer 11

periorbitalbeard areamid -linelarge segment of face - think PHACES syndromemultiples - inc risk of liver hemangiomaulcerating

Question 12

what do you call a port wine stain

Answer 12

nevus flammeus - vascular malformation10% risk of sturge weber if in V1 distribution + glaucoma risklifelong BM

Question 13

Features of langerhan histiocytosis

Answer 13

DIRecurrent rashBone lesions

Question 14

what are the criteria for NF1

Answer 14

need 2 or more: CAFE SPOTCafé au lait spots- >6 (>5mm in prebubertal, >15 post)Axillary freckling or inguinalFibromatosis - 2 or 1 plexiform neurofibromaEye- Lisch nodulesSkeletal abn-dysplasia of sphenoid bone or dysplasia or thinning of long bone cortexPositive family historyOptic Tumor

Question 15

what is the management of vitiligo?

Answer 15

strong topical steroids

Question 16

how do you differentiate post inflammatory hypopigmentation vs pityriasis alba

Answer 16

very similarpityriasis alba will have a scale

Question 17

what is pityriasis alba and how do we manage it?

Answer 17

eczema that causes hipopigmentationtreat with 1% hydrocortisone BID for 5-7 days

Question 18

in what age group is tinea vesicolor more likely to occur?

Answer 18

teen because need the sebum to survive

Question 19

how do you treat tinea vesicolor?

Answer 19

antifungal shampoo daily for 1-2 weeks

Question 20

how do we manage staph scalded skin

Answer 20

pain mgntIV clox+/- clindamycin as anti-toxincompresses to heal skin

Question 21

what is a distinctive feature of eczema herpeticum?

Answer 21

monomorphous rash

Question 22

how do you manage eczema herpeticum?

Answer 22

confirm Dx via PCR- if unwell - IV acyclovir- if well, PO acyclovir for 10 days-if near the eyes, need optho assessment

Question 23

what is the treatement for tinea Capitis

Answer 23

Itraconazole as per CPSPO terbinafine for 2-8 weeks

Question 24

what are side effects to terbinafine

Answer 24

inc LFTdecreased PMNtates alterationsuggest LFT before treatment

Question 25

How do you treat tinea corporis

Answer 25

TOPICAL - ketoconazole-clotrimazole- terbinafineNOT nystatin

Question 26

What drugs are usually responsible for SJS/TEN

Answer 26

AEDPenicillinsulpha

Question 27

what is the diff between SJS and TENS

Answer 27

SJS if 30%

Question 28

How do we manage SJS?

Answer 28

IV IG x3 d + all supportive stuff

Question 29

what is the choice of Rx for facial eczema

Answer 29

1% hydrocortisone

Question 30

What is the initial treatment for limb/trunk eczema?

Answer 30

0.05% betamathsone valerate

Question 31

What infection can precede the onset of psoriasis

Answer 31

GASespecially guttate pattern

Question 32

How do you manage psoriasis?

Answer 32

20% - UV, systemic treatmentmost have spontaneous remission weeks to months

Question 33

who might get neonatal lupus

Answer 33

if mom has anit-Ro and or Anti-Lamom does not need to be symptomaticappears up to 6 weeksresolves by 6 mo

Question 34

what infection can cause Toxic epidermal necrolysis?

Answer 34

mycoplasma

Question 35

what type of rsh might occur 2-6 weeks after starting an AED?

Answer 35

mobilliform drug eruptionreoccurs with repeated exposureusually only affects the skin

Question 36

what is drug hypersensitivity syndrome

Answer 36

mobilliform rash and either: (>1)feverpharyngitishigh LFTLNEosinophilia

Question 37

how do you manage drug hypersensitivity?

Answer 37

discontinue drugconsider alt Rxanihistaminetopical steroidif severe- oral

Question 38

what are the important characteristics of urticaria?

Answer 38

wheal are due to transient dermal edema each lesion

Question 39

how do you manage chronic urticaria?

Answer 39

1. eliminate allergen if known2. Allergy testing if not known3. epi pen may be necessary4. antihistamine5 avoid potential triggers - NSAIDS, Alcohol, codeine, physical

Question 40

At what point can you use Tacrolimus for atopic dermatitis

Answer 40

if > 2 yrsif failed or cannot tolerate steroids

Question 41

how do you manage alopecia areata?

Answer 41

disease education -variable and recurrent,no preventiontreatment is to control (not Cure)can try potent topical steroids or mid pot injected steroidsscreen for other AI disordersWigscounselling

Question 42

what are the topical acne treatment options?

Answer 42

RetinoidsBenzoyl peroxideTopical AbxCombo

Question 43

if the acne is mostly comedomal, what is the treatment option

Answer 43

Retinoid + BP

Question 44

if the acne is inflammatory, what are the treatment options

Answer 44

BP orTopical Abx + BPcan use all 3...

Question 45

what is important for a patient to know if they are about to start Isotretinoin

Answer 45

course is 6 mo90-95% will clear after 1st coursewill cause mB dryingTeratogenic - need to be on OCPNeed baseline BHCG and LFTS

Question 46

if a lesion is stroked and urticaria occurs, what do you call that and when is it useful?

Answer 46

Darier's signto show mastocytomasusually congenital or seen in early infancy

Question 47

how do you manage mastocytomas or urticaria pigmentosa?

Answer 47

1.discuss possible triggers - warm bath, contact, exercise, scratching,meds2.Aniti-histmaines3. rarely need epipen4.Resolves by adolescence

Question 48

what systemic features can be found with urticaria pigmentosa

Answer 48

1. FTT2.Chronic diarrhea3. flushing4. HA

Question 49

what nevus is at risk of BCC

Answer 49

nevus sebaceoustherefore should get excised

Question 50

what are features of erythema toxicum?

Answer 50

onset 24-48 hrspeak DOL 2resolves by one weekmacules, papules, pustuleseosinophils on smear

Question 51

if smear shoes eosinophils, what baby rash is it?

Answer 51

erythema toxicum

Question 52

if smear shows PMNs, what baby rash is it?

Answer 52

transient neonatal pustular melanosis

Question 53

baby presents with pustules and no erythema, ruptured pustules with peripheral scale and hyperpigmented macules. Baby is otherwise well. Dx

Answer 53

transient neonatal pustular melanosisunknown etiologypresent at birth!!!PMNs on smearno Rx

Question 54

how do you manage seborrheic dermatitis

Answer 54

1% hydrocortisone powder in antifungal cream

Question 55

pseudoporphyria drugs

Answer 55

NSAIDSlasixcyclospretinoidstetracycline

Question 56

what are causes of erythema multiforme

Answer 56

HSV 1stMycoplasma