Abstract
Introduction
A mixed germ cell tumor with a teratoma component can become enlarged following chemotherapy, and such an event is diagnosed as growing teratoma syndrome. Removing large, hypervascular tumors including a tumor encased by developed vasculatures from the pineal region is challenging during a single operation.
Case report
A 15-year-old male underwent chemotherapy for mixed germ cell tumors according to the KSPNO G082 protocol. This case of a mixed germ cell tumor with growing teratoma syndrome was recognized very early during chemotherapy. The tumor was completely removed during the staged operations. First, the anteriorly located tumor on the third ventricle was removed via the transcallosal interforniceal approach, and 1 month later, the occipital transtentorial approach was used for the pineal tumor with decreased vascularity.
Conclusion
Performing staged operations could be recommended for large hypervascular pineal tumors, which can be safely removed during the second operation once vascularity has decreased.
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Funding
This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT, and Future Planning (2020R1I1A3073338).
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This study complies with the World Medical Association Declaration of Helsinki, and this retrospective study was approved by the institutional review board of Chonnam National Univeristy Hwasun Hospital (CNUHH-2020–103). Written informed consent was obtained from the patient’s parents for publication of this case report and any accompanying images.
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Jung, TY., Baek, HJ., Kim, SK. et al. Staged operations for a hypervascular mixed germ cell tumor with growing teratoma syndrome: a case report. Childs Nerv Syst 38, 11–16 (2022). https://doi.org/10.1007/s00381-021-05393-4
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DOI: https://doi.org/10.1007/s00381-021-05393-4