A spontaneous partially thrombosed ductal aneurysm presenting with left recurrent laryngeal nerve palsy

Abstract Ductus arteriosus aneurysm is a rare clinical entity, with most cases found in the paediatric population. Patients with ductus arteriosus aneurysms become symptomatic due to the pressure exerted by the aneurysm on the surrounding structures. In adults, hoarseness due to ductus arteriosus aneurysm impinging on the left recurrent laryngeal nerve is a rare condition. Here, we present a case of a 60-year old Indian woman, who presented with hoarseness secondary to a ductus arteriosus aneurysm – a diagnosis consistent with Ortner’s syndrome. Key points Aneurysms of a patent ductus arteriosus (PDA) is a rare condition, especially in adults. Hoarseness due to a PDA aneurysm impinging on the left recurrent laryngeal nerve is a rare cause of Ortner’s syndrome. Emergency surgery is needed if a PDA aneurysm breaks off. It is essential to perform a detailed cardiovascular examination, besides a thorough laryngological examination in all cases coming with hoarseness. Prompt treatment of the underlying cause of hoarseness is vital for the complete recovery of voice