Dermatology

Question 1

Mx seborrhoeic dermatitis scalp

Answer 1

topical 2% ketoconazole 1st line

Question 2

which fungus causes seborrhoeic dermatitis?

Answer 2

Malassezia furfur

Question 3

which conditions are associated with seborrhoeic dermatitis?

Answer 3

HIV
Parkinsons

Question 4

Mx seborrhoeic dermatitis face/body

Answer 4

topical antifungal (e.g. ketoconazole)
topical steroids

Question 5

which conditions are associated with vitiligo?

Answer 5

T1DM
Addisons
Autoimmune thyroid disorders
pernicious anaemia
alopecia areata

Question 6

which phenomenon can vitiligo appear via trauma?

Answer 6

Koebner phenomenon

Question 7

Mx vitiligo

Answer 7

sunblock
topical corticosteroids
+/- tacrolimus

Question 8

where are keloid scars most common?

Answer 8

sternum

Question 9

first line Mx urticaria

Answer 9

non sedating antihistamines e.g. loratidine/certirizine for up to 6 weeks

Question 10

mx refractory urticaria

Answer 10

prednisolone

Question 11

1st line Mx lichen planus

Answer 11

TO steroids

Question 12

description of spider naevi

Answer 12

central red papule with surrounding capillaries which blanch on pressure

Question 13

where are spider naevi almost always found?

Answer 13

upper part of body

Question 14

which conditions are spider naevi associated with?

Answer 14

liver disease

Question 15

what is the difference between bullous pemphigoid and pemphigus vulgaris

Answer 15

bullous pemphoigoud does not involve mucosa
pemphigus vulgaris does involve mucosa

Question 16

1st line mx facial psoriasis

Answer 16

hydrocortisone 1% 1

Question 17

1st line Mx rosacea with papules/pustules

Answer 17

topical ivermectin

Question 18

features of rosacea

Answer 18

flushing (1st`)
telangiectasia
–> persistent erythema with papules + pustules
rhinophyma
blepharitis

Question 19

which condition is dermatitis herpaiformis commonly seen in ?

Answer 19

coeliac disease

Question 20

features of dermatitis herpetiformis

Answer 20

itchy, vesicular lesions on the extensor surfaces

Question 21

2nd line Tx for dermatitis herpatiformis if gluten free diet has not imrpved

Answer 21

dapsone

Question 22

Tx pityriasis versicolor

Answer 22

ketonazole shampoo

Question 23

most common cause of tinea capitis in the UK

Answer 23

trichophyton tonsurans

Question 24

Mx tinea capitis - tonsurans causative agent

Answer 24

PO antifungals e.g. terbinafine

Question 25

Mx tinea capitis - microsporum causative agent

Answer 25

PO antifungals e.g griseofulvin

Question 26

Mx tinea corporis

Answer 26

fluconazole

Question 27

causative agent molluscum contagiasum

Answer 27

MCV - molluscum contagiasum virus

Question 28

drugs which can precipitate psoriasis

Answer 28

beta blockers lithium antimalarials NSAIDs ACEi WITHDRAWAL of steroids

Question 29

cause of bullous pemphigoid

Answer 29

development of antibodies against henidesmosomal proteins BP180 + BP 230

Question 30

findings skin biopsy bullous pemphigoid

Answer 30

immunofluoresnce - igG and C3 at dermoepidermal junction

Question 31

Mx bullous pemphigoid

Answer 31

referral to derm who will start PO CCS

Question 32

Mx of flexural psoriasis

Answer 32

topical steroid only

Question 33

what is a curlings ulcer ?

Answer 33

stress ulcer which can occur with severe burns

Question 34

first line Tx of scalp psoriasis

Answer 34

topical potent steroids

Question 35

medical Mx of capillary haemangioma

Answer 35

propranolol

Question 36

pemphoid gestationis vs polymorphic eruption of pregnancy

Answer 36

polymorphic eruption of pregnancy - no blisters

Question 37

why refer keratocanthoma to dermatology urgently?

Answer 37

to ecxl SCC

Question 38

difference between spider naevi and telangiectasia?

Answer 38

spider naevi refill from center when pressed telangiectasia fill from edge

Question 39

oral treatment of acne vulgaris in pregnancy?

Answer 39

oral erythromycin

Question 40

appearance livedo reticularis

Answer 40

purplish, non-blanching, reticulated rash caused by obstruction of the capillaries resulting in swollen venules.

Question 41

conditions associated with livedo reticularis

Answer 41

idiopathic (most common) polyarteritis nodosa systemic lupus erythematosus cryoglobulinaemia antiphospholipid syndrome Ehlers-Danlos Syndrome homocystinuria

Question 42

what is telogen effluvium

Answer 42

loss and thinning of hair due to severe stress

Question 43

Mx alopecia areata

Answer 43

topical corticosteroid + referral to derm

Question 44

underlying pathogenesis dermatitis herpetiformis

Answer 44

formation of IgA antibodies --> deposition of IgA granulation

Question 45

causes of scarring alopecia (5)

Answer 45

trauma/burns radiotherapy lichen planus tinea capitis discoid lupus

Question 46

which cancer is tylosis associated with + which body part is affected

Answer 46

oesophageal ca palms + soles

Question 47

which type of malignancy is acquired icthyosis associated with

Answer 47

Hodgkins lymphoma

Question 48

which type of malignancy is Acquired hypertrichosis lanuginosa associated with (2)

Answer 48

GI + lung Ca

Question 49

which type of malignancy is Dermatomyositis assoc with (2)

Answer 49

ovarian and lung ca

Question 50

which type of maliganncy is Erythema gyratum repens associated with\?

Answer 50

lung ca

Question 51

which type of malignancy is Migratory thrombophlebitis associated with?

Answer 51

pancreatic ca

Question 52

which type of malignancy is Necrolytic migratory erythema associated with?

Answer 52

glucagonoma

Question 53

which type of malignancy is Pyoderma gangrenosum associated with

Answer 53

myeloproliferative disorders

Question 54

which type of malignancy is Sweet's syndrome associated with?

Answer 54

myelodysplasia

Question 55

first line Mx hyperhidrosis

Answer 55

aluminium chloride