Dermatology

Question 1

14 year old boy with acne. He has multiple whiteheads and blackheads but no scarring. What is first-line treatment?

Answer 1

Topical retinoid

Question 2

What skin lesion is associated with immunosuppression?

Answer 2

SCC

Question 3

What treatment is given for mild/moderate and severe/resistant rosacea

Answer 3

Mild/moderate: Topical metronidazole
Severe/resistant: Oral tetracycline

Question 4

What cancer is Tylosis associated with?

Answer 4

Oesophageal cancer

Question 5

What cancer is Acanthosis nigricans associated with?

Answer 5

Gastric cancer

Question 6

What cancer is acquired ichthyosis associated with?

Answer 6

Lymphoma

Question 7

What is the name of the complication of severe burns, associated with necrosis of the gastric mucosa, usually due to hypovolaemia, associated with haematemesis and malaena?

Answer 7

Curling’s ulcer

Question 8

Ulcer at the site of a scar which isn’t healing

Answer 8

Marjolin’s ulcer

Question 9

40M with intensely itchy bullous rash on elbows and ankles. Lesions are papules and blisters up to 1cm on reddened skin. What is the underlying diagnosis?

Answer 9

Coeliac disease (dermatitis herpetiformis)

Question 10

50M with purple rash over eyelids. What is the underlying diagnosis?

Answer 10

Dermatomyositis
Heliotrope rash (purple/red rash on eyelids), shawl sign (macular rash on back and shoulders) and red papules over knuckles (gottron’s papules)
Anti-Jo1 and Anti-Mi2

Question 11

60F diabetic with a painful, tender, reddened area with a well-defined edge over right cheek?

Answer 11

Erisypelas

Question 12

Inital treatment for palmar psoriasis?

Answer 12

Emollients then betamethasone