Gigantic biatrial myxoma in a young female with an atrial septal defect: a case report

Myxomas are uncommon and benign cardiac neoplasms that can present with various cardiac, systemic, embolic, or without symptoms depending on their location and size. Very few cases of large, truly biatrial, or tumours connected via the cardiac atria have been reported throughout the years.

We present an unusual case of an apparently healthy 25-year-old French woman, who presented with dyspnoea at Munich's Octoberfest. Echocardiography and computed tomography identified gigantic masses in left and right atrium, which were connected through an atrial septal defect. They were successfully removed by emergent cardiac surgery.

This case describes an uncommon tumour and highlights the importance of a quick diagnosis and prompt surgery. We describe the management and surgery for atrial myxomas as well as demonstrating pre- and intraoperative pictures.