With the advancement of radiological investigation, intrapartum detection of fetal abnormalities is now precisely performed. Lymphangiomas are now diagnosed even before patient is born. The swelling may be gigantic and potentially life-threatening during the delivery. Nowadays, it is still a great challenge to doctors as how to deliver the baby together with the big neck mass. We present a case of huge intrapartum neck lymphangioma, for which we performed ex-utero intrapartum treatment (EXIT) procedure, followed by excision of the lesion later. The challenges on managing both mother and infant will be discussed.