Contralateral transcallosal transfalcine approach for bilateral intra-extraventricular anaplastic ganglioglioma via 'the trans-tumoral route': a technical case instruction.
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Abstract
Background: Bilateral, biventricular lesions present a challenging scenario in neurosurgery, often requiring complex surgical techniques for management. Gangliogliomas (GG), while typically indolent, can manifest as anaplastic variants (AGG), necessitating comprehensive treatment strategies. This case study explores a unique surgical approach for a patient with bilateral, intra-extraventricular lesions infiltrating the corpus callosum, highlighting the complexities of managing such cases.
Methods: A 63-year-old female presented with a progressive intraventricular lesion infiltrating the left frontal lobe, diagnosed initially as a ganglioglioma. Following resection and histological examination, the lesion was confirmed as a WHO Grade 1 ganglioglioma. Subsequently, a contralateral lesion emerged, necessitating a novel surgical approach to achieve maximal safe resection while minimising neurological deficits. The technique involved extending the surgical corridor contralaterally along the tumour route, guided by neuronavigation and fluorescence imaging.
Results: The surgical approach enabled maximal safe resection of the lesion, with postoperative imaging confirming complete resection in most sites except for a known infiltration in the right posterior lateral ventricle. Histological examination revealed AGG, prompting subsequent adjuvant radiotherapy due to its aggressive nature.
Conclusion: The management of bilateral, biventricular lesions such as AGG requires innovative surgical approaches tailored to individual patient characteristics. The case highlights the efficacy of a transtumoral approach in achieving maximal safe resection while minimising neurological sequelae. Moreover, it underscores the importance of comprehensive treatment strategies, including adjuvant therapies, in addressing aggressive histological variants of gangliogliomas.
期刊介绍：
The British Journal of Neurosurgery is a leading international forum for debate in the field of neurosurgery, publishing original peer-reviewed articles of the highest quality, along with comment and correspondence on all topics of current interest to neurosurgeons worldwide.
Coverage includes all aspects of case assessment and surgical practice, as well as wide-ranging research, with an emphasis on clinical rather than experimental material. Special emphasis is placed on postgraduate education with review articles on basic neurosciences and on the theory behind advances in techniques, investigation and clinical management. All papers are submitted to rigorous and independent peer-review, ensuring the journal’s wide citation and its appearance in the major abstracting and indexing services.
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