Dermatalogical

Question 1

Scaly, red plaque in immunosuppressed patient

Answer 1

Squamous cell carcinoma

Question 2

Skin blisters + linear IgG deposition on IF

Answer 2

Bullous pemphigoid

Question 3

Mole on back of 60-year-old man

Answer 3

Superficial spreading melanoma

Question 4

S100 stain

Answer 4

Melanoma

Question 5

Pigmented lesion on sole of foot

Answer 5

Acral lentiginous melanoma

Question 6

Pigmented lesion on forehead

Answer 6

Lentigo maligna (melanoma)

Question 7

Ulcerated skin lesion with everted edge

Answer 7

Squamous cell carcinoma

Question 8

Pearly white edges + telangiectasiae

Answer 8

Basal cell carcinoma

Question 9

Nikolsky’s sign

Answer 9

Pemphigus vulgaris

Question 10

Pigmented lesion in dark skinned person

Answer 10

Acral lentiginous melanoma

Question 11

Target lesions

Answer 11

Erythema multiforme

Question 12

Erythematous nodules on anterior shins

Answer 12

Erythema nodosum

Question 13

Painful pustules with grey/purple border and base with pustular, haemorrhagic exudate

Answer 13

Pyoderma gangrenosum (in IBD and RA)

Question 14

Pruritic, polymorphous collections of urticarial wheals, vesicles, bullae and papules

Answer 14

Dermatitis herpetiformis (in coeliac disease)

Question 15

Squamous cell carcinoma arising from area of long-standing inflammation or scarring

Answer 15

Marjolin’s ulcer