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1
Gastric teratomas are rare neoplasms in children, constituting less than 1% of all pediatric teratomas, with immature types often being malignant.
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2
A case of immature gastric teratoma was reported in a term male neonate, detected prenatally and confirmed postnatally as an intra-abdominal mass.
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3
Imaging revealed a heterogeneous mass with calcifications and fatty components, indicating a teratoma, and laboratory tests showed elevated tumor markers.
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4
The patient underwent complete surgical resection on postnatal day four, with histopathological examination confirming a grade III immature teratoma.
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5
This case emphasizes the need for including gastric teratoma in differential diagnoses of neonatal abdominal masses and the importance of multidisciplinary management.
