Regional anaesthesia with extracorporeal membrane oxygenation backup for caesarean section in a parturient with neck and mediastinal masses.

Mediastinal mass in pregnancy is a rare condition that presents significant anaesthetic challenges. We present a woman with relapsed Hodgkin's lymphoma during pregnancy who declined to have chemotherapy because of concerns for her unborn child. She failed to attend follow-up clinic appointments and presented at 33 weeks' gestation with tracheal deviation and narrowing down to the level of the carina, as a result of large neck and mediastinal masses. She required delivery of the baby to allow her to receive urgent chemotherapy. We describe successful management of a caesarean section under combined spinal-epidural anaesthesia, at which bilateral femoral vein access was gained in case of the need for urgent extracorporeal membrane oxygenation.