Cystic Hygroma
Pronunciation: SIS-tik high-GROW-ma
Benign lymphatic malformation presenting as soft, multiloculated mass, commonly in the neck region. Often diagnosed prenatally.
Full Definition
Cystic hygroma, also known as lymphangioma, is a benign congenital malformation of the lymphatic system characterized by the formation of multiloculated, fluid-filled cysts. These lesions most commonly occur in the neck region but can also develop in the axilla, chest, or other locations where lymphatic tissue is present. The condition results from failure of the lymphatic system to connect properly with the venous system during embryological development. Cystic hygromas can vary significantly in size and may cause compression of adjacent structures, particularly the airway when located in the neck. Many cases are diagnosed prenatally via ultrasound, and postnatal management may require surgical excision, sclerotherapy, or observation depending on size and location.
Usage
Usage note: Specify anatomical location and relationship to critical structures in surgical documentation.
In Context
- "Prenatal MRI revealed a large cystic hygroma extending from the left neck into the superior mediastinum." — Fetal medicine consultation
- "Complete surgical excision of the cystic hygroma was achieved without injury to adjacent vascular structures." — Operative report