Dermatology

Question 1

Alopecia with normal scalp, healthy hair density, looks like hairs snapped off

Answer 1

Trichotillomania

Question 2

Alopecia with shiny, smooth scalp

Causes?

Answer 2

Alopecia areata (anata effluvium)

Autoimmune disease, chemotherapy

Question 3

Alopecia with hair loss with bulb at end of hair (club hair)

Causes?

Answer 3

Telogen effluvium (excessive shedding)

Happens 2-6 months after event
- physical / mental stress. Body stops producing hair

Question 4

Proper name for stork mark?

Answer 4

Naevus simplex

Question 5

Red / blue / black lagoons on dermatoscopy?

Answer 5

Cherry angioma / angiokeratoma

Question 6

Soft ovoid lesion that follows skin lines?

Answer 6

Neurofibroma

Question 7

Consequences of overuse of topical steroids?

Answer 7

Atrophy
Telangiectasia
Striae

Question 8

Treatment of periorifacial dermatitis?

Answer 8

1. Discontinue all face products
2. Wash face with warm water
3. Gel sunscreen
4. Metronidazole 0.75% bd 4-6 weeks
5. Doxycycline 50-100mg daily 8 weeks

Question 9

Treatment for superficial BCC?

Answer 9

1. Excision
2. Imiquimod (Aldara) 5 nights a week, 6-16 weeks
3. Cryotherapy - double freeze/thaw
4. Radiotherapy ( last line)
5. Efudix (5FU)

Question 10

Rare genetic condition with GI polyps + pigmentation affecting skin and mucous membranes

Answer 10

Peutz-jeghers syndrome

Question 11

Small hemangioma growing looking thing. Rapidly growing?

Treatment?

Answer 11

Pyogenic granuloma

Destruction

Question 12

Painful lump under nail plate, tender

Answer 12

Glomus tumour (not malignant)

Question 13

4 ps of lichen planus?

Answer 13

Papule
Purple
Polygonal
Pruritic

Question 14

Lichen planus treatment?

Answer 14

Self resolving 6-9 months

Steroids symptoms

Question 15

Which joints affected hemochromatosis?

Answer 15

MCP and PIP

Question 16

Topical treatment options for rosacea?

Answer 16

1. Metronidazole 0.75% once-twice daily
2. Azelaic acid 15% gel once to twice daily

6-12 weeks

Question 17

Treatment for flushing not related to other causes?

Answer 17

Propranolol 10mg bd PrN

Question 18

Painful nodule on most prominent aspect of the ear helix?

Answer 18

Chondrodermatitis nodularis helicis

Question 19

Child with purpura, abdominal pain and joint pain?

Investigations?

Treatment?

Answer 19

Henoch-schonlein purpura

Urinalysis

Self-limiting, close follow up

Question 20

Smelly, bubbly / pitted feet?

Answer 20

Pitted keratolysis

Question 21

Times of the hands?

Answer 21

Times manuum

Question 22

Nodule on hand in dairy farmer?

Answer 22

Milkers nodule

Parapox virus

Question 23

Target lesions?

Most common cause?

Answer 23

Erythema multiforme

HSV infections, meds, idiopathic

Question 24

Chronic condition, inflammation of sweat glands in body folds?

Answer 24

Hidradenitis suppurativa