Picture Quiz: An Unusual cause of 'Troponinaemia'

A 58 year old policeman presented with a 4 week history of cough, haemoptysis, exertional dyspnoea, ear discomfort and sore throat. He was previously healthy and taking no regular medications. He was a non-smoker and had no risk factors for coronary artery disease. He had recently completed two courses of antibiotics for a presumed ear infection. He had also experienced occasional minor epistaxis with constitutional symptoms of weight loss and night sweats over recent months. Clinical examination was unremarkable.