📋Overview
A cystic hygroma is a type of lymphatic malformation that occurs when the lymphatic system does not form correctly during fetal development. This congenital anomaly leads to the creation of fluid-filled masses, which are most commonly located in the cervical or facial regions and are typically present at birth or detected early in childhood.
While these lesions are benign, they represent structural irregularities where lymph fluid collects in cystic spaces instead of flowing normally through the vascular network. Clinical documentation often refers to this condition as a lymphatic malformation, reflecting its origin as a developmental error within the lymphatic vessels.
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