Cystic Hygroma in an Adult Male: A Rare Case Report

“Cystic hygroma” is defined as a fluid-filled sac, resulting from a blockage in the lymphatic system. This large, deep, diffuse swelling commonly occurs in the neck as a result of the congenital malformation of lymphatic system having an equal distribution between males and females. It results as a failure of development of the communications between lymphatics which is mostly found in the posterior triangle of neck. Its recurrence rate may be up to 10%–15%. Different treatment modalities for treating cystic hygroma are surgical excision, sclerotherapy, laser and radiofrequency. Here we report a rare case of cystic hygroma present in a 20-year-old male on left side of his neck treated by total surgical excision of the lesion. The patient is on regular follow up for 12 months and he has been asymptomatic till now.