Congenital Neck Mass

Superior Vena Cava Syndrome and Hypoxic Ischemic Encephalopathy Secondary to a Massive, Right-Sided Immature Cervical Teratoma

“…Cervical teratomas account for 2% to 9% of all pediatric teratomas. 5 Teratomas of the neck are described in numerous case reports [6][7][8][9][10][11][12][13][14][15] and case series [16][17][18][19][20][21][22][23][24] which report that these tumors can grow to massive size. Aggressive growth can jeopardize the esophagus, increasing risk for polyhydramnios and preterm birth.…”

“…2,25,26 The differential diagnosis of a prenatal neck mass includes cervical teratoma, cystic hygroma/lymphangioma, congenital goiter, thyroglossal duct cyst, branchial cleft cyst, arteriovenous malformation, lipoma, laryngocele, neuroblastoma, cervical hemangioma, dermoid cyst, cervical meningocele, occipital encephalocele, bronchogenic cyst, infantile fibrosarcoma, thymic cyst, foregut duplication cyst, cervical bronchogenic cyst, and ranula. [8][9][10][11]23,24 Superior Vena Cava Syndrome SVCS is caused by compression of the superior vena cava, leading to diminished cardiac venous return and potentiating blood flow obstruction, respiratory compromise, and neurologic dysfunction. 27 SVCS has been associated with hypoxic encephalopathy 28 and reported in cases of Figure 3.…”