1. Department of Radiology, St Vincent’s University Hospital, University College Dublin School of Medicine, Dublin, Ireland

2. Department of Respiratory Medicine, St Vincent’s University Hospital, University College Dublin School of Medicine, Dublin, Ireland

3. Department of Radiology, St Vincent’s Private Hospital, Dublin, Ireland

4. Department of Pathology, St Vincent’s University Hospital, University College Dublin School of Medicine, Dublin, Ireland

5. Department of Radiology, National Jewish Health, Denver, USA