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[Optic chiasm gliomas (author's transl)]

A Visot, J Rougerie, P J Derome

    Neuro-Chirurgie
    |January 1, 1980
    PubMed
    Summary
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    This study on optic pathway gliomas found radiotherapy effective in improving visual acuity and reducing tumor size, with a 12% operative mortality. Long-term follow-up showed positive outcomes for optic nerve and chiasmatic gliomas.

    Area of Science:

    • Neuro-oncology
    • Pediatric neurosurgery
    • Ophthalmology

    Context:

    • Optic pathway gliomas (OPGs) are tumors affecting the optic nerves, chiasm, and hypothalamus.
    • These tumors present diagnostic challenges, especially chiasmatic gliomas, even with CT scans.
    • Neurofibromatosis type 1 is a common comorbidity, found in 30% of cases.

    Purpose:

    • To review clinical features, diagnostic difficulties, and treatment outcomes of 40 optic chiasm glioma cases.
    • To evaluate the efficacy of radiotherapy and surgical approaches in managing OPGs.
    • To highlight the impact of OPGs on endocrine function and visual acuity.

    Summary:

    • Histological analysis confirmed all tumors as bipolar spongioblastomas.
    • Treatment involved radiotherapy (alone or post-operative) and surgical intervention (subfrontal approach emphasized).

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  • Outcomes included improved visual acuity, reduced tumor size, and long-term survival, with 12% operative mortality.

    • Impact:

    • Radiotherapy demonstrates efficacy in controlling tumor growth and improving patient outcomes.
    • The subfrontal approach offers advantages for surgical management of optic nerve and chiasm tumors.
    • Endocrine disorders require careful management, particularly growth function, following radiotherapy in children.