Extragonadal teratoma is the most common congenital tumor. The prognostic significance of the grade of immaturity and the presence of small foci of conventional yolk sac tumor (YST) in fetal and neonatal teratomas is still debatable.
Localization
cervical teratoma
mediastinal teratoma
pericardial teratoma
retroperitoneal teratomas
sacrococcygeal teratoma
See also
References
Heerema-McKenney A, Harrison MR, Bratton B, Farrell J, Zaloudek C. Congenital teratoma: a clinicopathologic study of 22 fetal and neonatal tumors. Am J Surg Pathol. 2005 Jan;29(1):29-38. PMID: 15613854