Derm PassMed

Question 1

Please name and describe the two derm conditions associated with pregnancy

Answer 1

Polymorphic eruption of pregnancy (itchy rash can be over abdo striae)

Pemphigoid gestationis (prurituc blistering lesions)

Question 2

What is pityriasis versicolor caused by?

Answer 2

Malassezia furfur (fungus)

Question 3

Seborrhoeaic dermatitis is often caused by an inflammatory reaction to

Answer 3

Malassezia furfur

Question 4

What is the intense itch of scabies associated with

Answer 4

Type 4 hypersensitivity reaction

Question 5

How long does the itch present for after eradication?

Answer 5

4-6 weeks after treatment the itch can persist

Question 6

How to treat fungal nails

Answer 6

Oral terbinafine with oral itraconazole as an alternative
Fingernails 6weeks to 3mths
Toenails 3-6 mths

Question 7

How’s does lentigo maligna start

Answer 7

Suspicious flat freckle on face or scalp of sun exposed sites

Question 8

What is alopecia areata

Answer 8

Localised well demarcated patches of hair loss associated with exclamation hair marks
Associated with autoimmune conditions

Question 9

Be aware of TEN in which drugs

Answer 9

Penicillins

Question 10

When is impetigo no longer contagious

Answer 10

48 hours after treatment
Or
When all the lesions have crusted over

Question 11

What is the first line for seborrhoeic dermatitis?

Answer 11

Topical ketoconazole

Question 12

What is the name for excessive production of sweat and how do you treat it?

Answer 12

Hyperhidrosis

Topical aluminium chloride

Question 13

Out of pemphigus and pemphigoid which one has mucosal involvement

Answer 13

Pemphigus vulgaris

Question 14

Multiple abscesses in painful areas of apocrine sweat glands

Answer 14

Hideadentitis suppurativa

Question 15

Rash after herpes virus

Answer 15

Erythema multifomre

Question 16

What is a typical presentation of lymphoma?

Answer 16

Painless mass and Leukonychia

Question 17

What is morphogenic BCC

Answer 17

Associated with more extensive spread than nodular BCC

Treated with mohs micrographic surgery

Question 18

How can you differentiate between spider naevi and telangectasia?

Answer 18

Pressing them and watching them refill, spider naevi will fill from the centre and telangectasia fills from the edge

Question 19

First line management of psoriasis

Answer 19

Emollient plus topical steroid plus vitamin d analogue

Question 20

What are keratoacanthomas often compared to or described as?

Answer 20

A volcano or crater

Question 21

Treat mild AKItinic keratosis

Answer 21

Topical diclofenac

Question 22

Treat moderate acitinic keratosis

Answer 22

Fluorouracil cream

Question 23

What are the 5 main medical issues which can present as an itch?

Answer 23

Liver disease
IDA
Polycythaemia 
CKD
Lymphoma

Question 24

What is keratoderma blenorrhagica?

Answer 24

Waxy yellow papules on the palms and soles

Seen in reiters syndrome

Question 25

First line treatment for seborrhoeic dermatitis

Answer 25

Topical ketokonazole

Question 26

What is a recognised systemic side effect of ketokonazole

Answer 26

Gynaecomastia

Question 27

What formula is used to calculate the volume of IV fluid required for resusc over the first 24 hours after a burn?

Answer 27

Parklands formula

Question 28

What is the most accurate way to assess the percentage body surface area affected from a burn?

Answer 28

Lund and browder chart

Question 29

First line for acne rosacea

Answer 29

Metronidazole topical | Or if severe oral tetracycline

Question 30

How can a melanocytic melanoma be differentiated between pyogenic granuloma?

Answer 30

History of trauma in pyogenic granuloma

Question 31

What is erythrasma and how do you treat it?

Answer 31

Infection caused by corynebacterium minutissimum Erythematous rash in axillae groin crease scaly flat not itchy Topical muconazole or oral erythromycin