Early intraspinal recurrence of a sacrococcygeal teratoma following oncologic resection: A case report

Introduction: Sacrococcygeal teratoma (SCT) is the most common congenital extragonadal germ cell tumor of infancy. Post-resection recurrence is attributed to tumor spillage, incomplete resection, no coccygectomy, and immature or malignant histology. However, in the absence of these risk factors, there are few reports of early aggressive tumor recurrence with intraspinal extension. This report describes a rare early SCT recurrence with intraspinal extension after oncologic resection. Case presentation: The primary SCT was initially detected at 29-weeks gestation and demonstrated interval growth from 8.5 × 9.5 × 7.7cm on prenatal MRI to 14.1 × 11.1 × 15.6cm on postnatal MRI. The primary SCT was resected on day of life three and noted to be a grade III immature teratoma (