We present the case of a 73-year-old male patient who was referred to our outpatient department because of a solitary pulmonary nodule on routine chest X-ray (figure 1). His medical history comprised mood disorders, benign prostatic hyperplasia, adequately treated hypertension and asbestos exposure. He had never been hospitalised previously and a chest X-ray was requested as part of the routine work-up by the neurologist for mild cognitive impairment. The patient was free of pulmonary symptoms. Physical examination and biochemical and haematological tests revealed no relevant findings. Lateral chest X-ray revealed a discrete, homogenous round nodule with smooth borders, projecting over the ascending aorta, which was not visible on the posteroanterior view (figure 1).