Combined presigmoid retrolabyrinthine and retrosigmoid approach for large vestibular schwannoma: a case report - Summary - MDSpire

Combined presigmoid retrolabyrinthine and retrosigmoid approach for large vestibular schwannoma: a case report

  • By

  • Mitsuru Kojima

  • Ryota Tamura

  • Konosuke Ishikawa

  • Taichi Sayanagi

  • Kosuke Karatsu

  • Ryo Ueda

  • Masahiro Toda

  • May 11, 2026

  • 0 min

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Objective:

To report the use of a combined presigmoid retrolabyrinthine and retrosigmoid approach for the safe resection of a large vestibular schwannoma with brainstem compression, highlighting its significance in improving surgical outcomes.

Key Findings:
  • Gross total resection of the tumor was achieved.
  • Facial nerve function remained normal (House–Brackmann grade I) postoperatively.
  • Residual hearing was noted on the operated side, avoiding complete deafness, which is crucial for patient quality of life.
Interpretation:

The combined approach enhances access to the brainstem, minimizes cerebellar retraction, and facilitates safe tumor removal in cases of large vestibular schwannomas, potentially offering advantages over traditional methods.

Limitations:
  • The study is based on a single case, limiting generalizability and the ability to draw broader conclusions.
  • Long-term outcomes and potential complications were not extensively discussed, which could inform future clinical practice.
Conclusion:

The integrated presigmoid retrolabyrinthine and retrosigmoid approach is a practical strategy for resecting large vestibular schwannomas with significant brainstem compression, improving surgical outcomes and preserving neurological function, which is vital for patient recovery.

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