Intrapericardial teratoma in the newborn

Area of Science:

• Pediatric Surgery
• Oncology
• Pathology

Background:

• Intrapericardial teratomas are rare congenital tumors.
• Teratomas can occur in various locations, including the pericardium.

Observation:

• Two cases of neonatal intrapericardial teratomas were analyzed.
• Case 1: A cystic, well-differentiated teratoma, completely excised with a favorable 10-month outcome.
• Case 2: A predominantly solid teratoma with mature and immature tissues, which recurred post-excision with aggressive invasion.

Findings:

• The recurrent tumor in Case 2 invaded pleural and pericardial spaces.
• Histological analysis revealed the recurrence was similar to the primary tumor.
• Case 2 represents a likely malignant intrapericardial teratoma in a neonate, indicated by immature neuroepithelium.

Implications:

• Immature neuroepithelium in intrapericardial teratomas may indicate a poor prognosis, similar to other teratoma locations.
• Aggressive or malignant teratomas may necessitate adjuvant therapies like radio- or chemotherapy.
• Early diagnosis and tailored treatment strategies are crucial for managing neonatal intrapericardial teratomas.