Giant Macrocystic Lymphatic Malformation in a Neonate

Cystic hygroma or macrocystic lymphatic malformation is a well-known entity and its diagnosis and management is also well described in literature. Rarely its size and location may pose management challenges.[1-3] We managed a case of humongous macrocystic lymphatic malformation of axilla and chest wall in a newborn. At 25 weeks of gestation, a 16cm mass was reported by antenatal ultrasound around left chest wall and arm. At 34.4 weeks of gestation, the baby boy was born by cesarean section. On examination, a 16x16cm mass was noted at the left chest wall with involvement of the skin and subcutaneous tissue; the tumor was soft, mobile and without adherence to deep layers (Fig.1).