Lymphatic Cyst

Overview

The lymphatic system is the network of vessels responsible for returning extra fluid from tissues to the venous system, as well as the lymph nodes that filter this fluid for microorganisms.

Lymphatic cysts are collections of lymphatic fluid with an epithelial lining that might reflect lymphatic abnormalities or emerge as a result of trauma or surgery. Lymphangiomas, also known as lymphatic cysts, are lymphatic system abnormalities characterized by thin-walled cysts; these cysts can be macroscopic, as in a cystic hygroma, or microscopic.

These abnormalities can occur at any age and in any area of the body, but 90% occur in children under the age of two and involve the head and neck.