LAUSR

An 82-year-old Moroccan man presented with 6-week history of a tender nodule on his left posterior leg, which had developed rapidly. He was otherwise well with no systemic symptoms. Ten years previously, he had been diagnosed with non-HIV-related classic Kaposi sarcoma (KS) after presenting with patch, plaque and nodular KS lesions and bilateral lower leg lymphoedema. Past treatments for his KS included compression garments, interferon-alfa immunotherapy and multiple courses of radiotherapy with three courses encompassing this particular area in the year prior to the nodule developing. Physical examination revealed an ulcerated nodule, 20 mm in size, on the posterior left ankle (Fig. 1).