ABSTRACT
A 54-year-old man has attended the emergency department with shortness of breath and a cough. He has been feeling increasingly unwell over the past 3-4 weeks. He describes fevers and night sweats, a loss of appetite and some loss of weight. He has a cough productive of grey sputum, which sometimes contains small clots of blood. He has never smoked and does not drink alcohol. There is no relevant medical or family history. He has been working for a charity in sub-Saharan Africa and returned home a few weeks ago.
