Immature teratoma arising from a benign cortical abnormality

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Updated: Aug 14, 2026

Fate Mapping of Human Embryonic Stem Cells by Teratoma Formation
08:56

Fate Mapping of Human Embryonic Stem Cells by Teratoma Formation

Published on: August 1, 2010

S J Hanna1, A L Green, O Ansorge

  • 1Department of Neurological Surgery (Paediatric Division), Radcliffe Infirmary, Oxford, UK. sjhanna@lycos.co.uk

Child'S Nervous System : Chns : Official Journal of the International Society for Pediatric Neurosurgery
|February 1, 2005
PubMed

Insights

A rare case of immature teratoma in a 13-year-old girl is presented. The tumor likely transformed from an earlier, benign germ cell lesion, highlighting the importance of monitoring incidental findings.

Area of Science:

  • Neuro-oncology
  • Pediatric Radiology

Background:

  • Immature teratomas are rare pediatric brain tumors.
  • Germ cell tumors can arise from ectopic germ cells within the brain.

Observation:

  • A 13-year-old girl presented with an immature teratoma in the left parieto-occipital region.
  • Initial brain imaging at 10 months old revealed an abnormality, initially diagnosed as a cortical malformation.

Findings:

  • The current immature teratoma is hypothesized to have developed from a pre-existing mature teratoma or other silent dystopic germ cell element.
  • This suggests a potential for malignant transformation in previously undiagnosed lesions.

Implications:

  • Discusses potential triggers for germ cell tumor transformation in the brain.
  • Highlights the importance of careful follow-up for incidental radiological findings in pediatric patients.
Abstract

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