A 76 year-old man presents with a florid spreading violaceous rash over most of his body - Palpable Purpura - What is your differential diagnosis?
Is it safe to give a patient frusemide if he has an allergy to sulfa drugs? Are you feeling slightly immunologically discombobulated? The answer's here.
A 33 year old caucasian female presented to the emergency department following minor trauma to her upper lip. Traumatic Angioedema?