Abstract
A 9-year-old previously well girl presented with multiple episodes of large volume haemoptysis and right sided consolidation. She continued to have haemoptysis despite intravenous antibiotics. CT chest suggested a right mainstem endobronchial lesion; this was not seen on bronchoscopy where an extensive blood clot was removed. Distal flexible bronchoscopy could not identify the source of bleeding. CT angiogram revealed a broncho-pulmonary arterial fistula, a rare cause of haemoptysis in children. Endovascular embolisation resulted in short-term symptom resolution; however, haemoptysis recurred months later, leading to re-embolisation. This case highlights a stepwise approach to the workup of large volume haemoptysis.