TY - CHAP M1 - Book, Section TI - Cystic Hygroma in Late Pregnancy A1 - Bianchi, Diana W. A1 - Crombleholme, Timothy M. A1 - D'Alton, Mary E. A1 - Malone, Fergal D. Y1 - 2015 N1 - T2 - Fetology: Diagnosis and Management of the Fetal Patient, 2e AB - Key PointsCystic hygroma and lymphangioma are older commonly used terms for a specific type of vascular malformation.Most often seen in the soft tissue of the neck, axilla, thorax, and lower extremities.Different prenatal natural history if diagnosed in the first trimester versus the third.Lymphangiomas presenting in the third trimester usually seen in the anterior or anterolateral neck are not usually associated with other anomalies or hydrops.Lymphatic vascular malformations consisting of cysts separated by fine septa.While the mortality of lymphatic vascular malformations prior to 30 weeks’ gestation is high, due to hydrops and karyotype abnormalities, those presenting later have an excellent prognosis.Cervical lymphangiomas are at risk for airway compromise, and an EXIT procedure should be considered if there is evidence of airway compression or displacement. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - obgyn.mhmedical.com/content.aspx?aid=1106397306 ER -