A non-healing ulcer in a healthy young woman.

A previously healthy woman, 22 years of age, presented to her general practitioner (GP) with a small, painless ulcer of 1 cm in diameter on her right ankle, which had developed after she expressed a small pustule at that site a few weeks earlier. She could not recall any preceding trauma or insect bite. She travelled extensively throughout Australia for work, but remained exclusively in urban areas of major cities. Her only other travel of note in the previous year was an overnight holiday on the Mornington peninsula in Victoria four months prior to presentation.