Sildenafil in Cystic Hygroma

Cystic hygroma is a benign congenital malformation of the lymphatic system. Most of the cystic hygromas are found in the neck; other rare locations include axilla, mediastinum, and limbs. Symptoms range from mere presence of lesions to gross morbidity secondary to compression of adjacent organs, infection, hemorrhage etc. Treatment is primarily aimed at complete surgical resection. Other treatment modalities include sclerotherapy, radiotherapy and laser ablation as well as medical therapy with sirolimus but recurrence rate is high. We present a neonate with right sided cystic hygroma whose lesion settled completely with sildenafil.