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Neonatal Med. 2017 May;24(2):97-100. English. Case Report.
Yoon SH , Park GY , Suh WS , Kim SS , Hong HS .
Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.

A teratoma is the most common germ cell tumor in children; however, a gastric teratoma is very rare. An immature gastric teratoma has malignant potential; therefore, it should be removed surgically and followed up routinely to assess for recurrence by performing imaging studies and estimating serum alpha-fetoprotein (AFP) level. We describe the case of a 2-day-old male neonate with abdominal distension and a palpable mass. He underwent surgical resection of a tumor that was diagnosed as an immature gastric teratoma.

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