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Giant malignant sacrococcygeal germ cell tumor in a newborn: A rare case report
Carmela Brillantino1, Maria Elena Errico2, Rocco Minelli3
1Department of Radiology - "AORN Santobono Pausilipon", Pediatric Hospital, Naples, Italy.
Insights
This study reports a rare case of a giant sacrococcygeal mixed germ cell tumor in a male newborn. The tumor contained both immature teratoma and malignant yolk sac elements, highlighting a complex pediatric neoplasm.
Area of Science:
- Pediatric Oncology
- Developmental Biology
- Surgical Pathology
Background:
- Malignant germ cell tumors are rare in children, accounting for 3-4% of pediatric neoplasms.
- Sacrococcygeal teratomas are the most common extragonadal germ cell tumors in infants and young children.
- While typically benign, neonatal sacrococcygeal teratomas can rarely present with malignant components, often yolk sac tumors.
Observation:
- This article details a rare case of a male newborn diagnosed with a giant sacrococcygeal mass.
- The tumor was histopathologically confirmed as a mixed germ cell tumor.
- The composition included grade 3 immature teratoma and malignant yolk sac elements.
Findings:
- The presented case is a rare instance of a giant sacrococcygeal mixed germ cell tumor in a neonate.
- The tumor exhibited a combination of immature teratoma and yolk sac malignancy.
- This highlights the potential for aggressive histology even in the neonatal period.
Implications:
- This case underscores the importance of thorough histopathological evaluation of sacrococcygeal masses, even in newborns.
- Understanding the mixed histology is crucial for appropriate diagnosis and treatment planning in pediatric oncology.
- Further research into the pathogenesis and management of such rare mixed germ cell tumors is warranted.
Abstract:
Malignant germ cell tumors constitute about 3%-4% of all neoplasms occurring before the age of 15. They arise in the ovaries, the testes, and in several other locations, including the lower back, the chest, the brain, and the abdomen. In infants and young children, the sacrococcygeal region is the most common site for extragonadal germ cell tumors, and teratomas account for the vast majority of sacrococcygeal germ cell tumors. Neonatal sacrococcygeal teratomas are usually benign and rarely they may contain a malignant component that is predominantly a yolk sac tumor. In this article, we describe a rare case of a male newborn with a giant sacrococcygeal mixed germ cell tumor composed of grade 3 immature teratoma and malignant yolk sac elements.
