Derm

Question 1

1st line Mx of pyoderma gangrenosum

Answer 1

steroids (e.g. oral prednisolone)

Question 2

Pityriasis rosacea

Answer 2

• acute, self-limiting rash
• tends to affect young adults
• aetiology is not fully understood but is thought that herpes hominis virus 7 (HHV-7) may play a role.
• no prodrome usually (a minority may give a history of a recent viral infection)
• herald patch (usually on trunk)
• followed by erythematous, oval, scaly patches which follow a characteristic distribution with the longitudinal diameters of the oval lesions running parallel to the line of Langer. This may produce a ‘fir-tree’ appearance