Left Subclavian Pseudoaneurysm: A Case of Palsies in the Recurrent Laryngeal Nerve, Phrenic Nerve, and Brachial Plexus

Significance Statement A patient developed a subclavian pseudoaneurysm following placement of an intravascular catheter for cancer treatment. The patient presented with palsies in the phrenic nerve, brachial plexus, and recurrent laryngeal nerve. This is a rare presentation, similar to Ortner's syndrome, which has not been previously presented in the literature. Furthermore, this case highlights the importance of early laryngoscopy in patients with persistent voice change, especially after a neck procedure.