Recurrent yolk sac tumor following resection of a neonatal immature gastric teratoma

@article{Ukiyama2005RecurrentYS,
  title={Recurrent yolk sac tumor following resection of a neonatal immature gastric teratoma},
  author={E. Ukiyama and M. Endo and Fumiko Yoshida and T. Tezuka and K. Kudo and Seiji Sato and S. Akatsuka and J. Hata},
  journal={Pediatric Surgery International},
  year={2005},
  volume={21},
  pages={585-588}
}
Gastric teratomas are very rare and usually benign. Only a few cases of gastric teratomas with malignant components have been reported. This report describes recurrence of a yolk sac tumor following resection of a neonatal immature gastric teratoma. Gastric teratoma recurring as a malignant lesion has not been previously reported. Recurrence of immature gastric teratomas should be considered, and a periodic follow-up check with alpha-fetoprotein level should be mandatory. 
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Immature gastric teratoma in a newborn
TLDR
A large immature grade II gastric teratoma in a male newborn was described and the tumor was treated with total excision including part of the stomach. Expand
Immature Gastric Teratoma Arising from Lesser Curvature
TLDR
There are only 13 reported cases of immature gastric teratoma arising from lesser curvature of stomach, and such a case is reported with review of literature. Expand
Immature Gastric Teratoma: A Rare Tumour
TLDR
A case of gastric teratoma in one and half month old male infant who presented with a palpable mass in abdomen, extending from epigastrium to the pelvis, which was confirmed to be grade-3 immature gastric Teratoma. Expand
Primary pure gastric yolk sac tumor
TLDR
Generally the prognosis of gastric YST is poor and the standard therapeutic approach beyond surgery is still uncertain, but involvement of migrating germ cells during embryonic development or multipotential neoplastic protoepithelial cells of the gastric mucosa have been suggested. Expand
Malignant transformation of intracranial mature teratoma to yolk sac tumor after late relapse. Case report.
TLDR
The authors describe the first case of the malignant transformation of an intracranial mature teratoma into a yolk sac tumor in a 16-year-old boy who presented with a 1-month history of anorexia and somnolence. Expand
Spontaneous rupture of immature gastric teratoma with hemoperitoneum in a newborn with 3-year follow-up
TLDR
Physicians should be aware of the existence of gastric teratoma as the differential diagnosis of a huge abdominal mass in infants, especially neonates. Expand
Extragonadal yolk sac tumor following congenital buccal mature cystic teratoma
TLDR
A case of a female infant presented with YST following a congenital buccal mature teratoma, which is extremely rare for a second GCT to occur at the same site and with a different histological type. Expand
Prenatal findings and neonatal immature gastric teratoma
TLDR
A case of giant immature teratoma of the stomach in the neonate, which was detected by prenatal ultrasonography in the third trimester as an echogenic mass contiguous with the stomach bubble, and delivered by elective caesarean section. Expand
Yolk sac tumour arising in mature teratoma in the parapharyngeal space.
TLDR
The only and first case of yolk sac tumour arising in a mature teratoma presenting as a parapharyngeal mass in a four year old male child is reported. Expand
Immature Gastric Teratoma with Rhabdomyosarcomatous and Primitive Neuroectodermal Tumor Components in an Adult Patient: A Case Report
Teratomas of the stomach are extremely rare, comprising only about 1% of all teratomas in the pediatric population [1,2]. The majority of cases are mature teratomas with less than two dozen reported… Expand
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