A 74-year-old man was admitted to hospital due to dyspnoea, malaise and purple, plaque-like papular nodules on his hands (figure 1A), soles (figure 1B) and genitalia for a duration of 1 month. He reported a 5-month history of systemic corticoste-roid use for treatment of giant cell arteritis. Laboratory tests disclosed severe lymphopenia and hypogammaglobulinaemia. Pancultures and serological tests were negative, including repeated HIV serology. Contrast-enhanced CT of the chest (2.5 mm slice thickness) demonstrated multiple bilateral solid pulmonary nodules with peribronchovascular distribution and a cavitating nodule in the left lower lobe (figure 1C).
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