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Presigmoid transpetrosal approach for the treatment of a large trochlear nerve schwannoma--case report.
Neurol Med Chir (Tokyo) 2002; 42(1):31-5NM

Abstract

A 61-year-old man presented with a rare, large trochlear nerve schwannoma manifesting as left-sided weakness and hypesthesia, bilateral bulbar pareses, and trochlear nerve paresis persisting for 3 months. T1-weighted magnetic resonance imaging with gadolinium revealed an intensely enhanced, well-circumscribed lesion with multicystic formation occupying the prepontine and interpeduncular cisterns and compressing the pons and midbrain with greater extension to the right. The mass was completely removed through the presigmoid transpetrosal approach with preservation of the posterior cerebral, superior cerebellar, and basilar arteries and their branches. Neuroradiological examination after 3 years demonstrated no recurrence. Enlargement of a tumor in the cisternal portion is inclined to involve and/or encase the adjacent major arteries and their branches. The presigmoid transpetrosal approach is one of the best surgical routes to remove a large trochlear nerve schwannoma safely and completely.

Authors+Show Affiliations

Department of Neurosurgery, Saitama Medical Center/School, Kawagoe, Saitama. matsui@ns2.saitama-med.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Case Reports
Journal Article
Review

Language

eng

PubMed ID

11902075

Citation

Matsui, Toru, et al. "Presigmoid Transpetrosal Approach for the Treatment of a Large Trochlear Nerve Schwannoma--case Report." Neurologia Medico-chirurgica, vol. 42, no. 1, 2002, pp. 31-5.
Matsui T, Morikawa E, Morimoto T, et al. Presigmoid transpetrosal approach for the treatment of a large trochlear nerve schwannoma--case report. Neurol Med Chir (Tokyo). 2002;42(1):31-5.
Matsui, T., Morikawa, E., Morimoto, T., & Asano, T. (2002). Presigmoid transpetrosal approach for the treatment of a large trochlear nerve schwannoma--case report. Neurologia Medico-chirurgica, 42(1), pp. 31-5.
Matsui T, et al. Presigmoid Transpetrosal Approach for the Treatment of a Large Trochlear Nerve Schwannoma--case Report. Neurol Med Chir (Tokyo). 2002;42(1):31-5. PubMed PMID: 11902075.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Presigmoid transpetrosal approach for the treatment of a large trochlear nerve schwannoma--case report. AU - Matsui,Toru, AU - Morikawa,Eiharu, AU - Morimoto,Tadashi, AU - Asano,Takao, PY - 2002/3/21/pubmed PY - 2002/5/7/medline PY - 2002/3/21/entrez SP - 31 EP - 5 JF - Neurologia medico-chirurgica JO - Neurol. Med. Chir. (Tokyo) VL - 42 IS - 1 N2 - A 61-year-old man presented with a rare, large trochlear nerve schwannoma manifesting as left-sided weakness and hypesthesia, bilateral bulbar pareses, and trochlear nerve paresis persisting for 3 months. T1-weighted magnetic resonance imaging with gadolinium revealed an intensely enhanced, well-circumscribed lesion with multicystic formation occupying the prepontine and interpeduncular cisterns and compressing the pons and midbrain with greater extension to the right. The mass was completely removed through the presigmoid transpetrosal approach with preservation of the posterior cerebral, superior cerebellar, and basilar arteries and their branches. Neuroradiological examination after 3 years demonstrated no recurrence. Enlargement of a tumor in the cisternal portion is inclined to involve and/or encase the adjacent major arteries and their branches. The presigmoid transpetrosal approach is one of the best surgical routes to remove a large trochlear nerve schwannoma safely and completely. SN - 0470-8105 UR - https://www.unboundmedicine.com/medline/citation/11902075/Presigmoid_transpetrosal_approach_for_the_treatment_of_a_large_trochlear_nerve_schwannoma__case_report_ L2 - http://joi.jlc.jst.go.jp/JST.JSTAGE/nmc/42.31?from=PubMed DB - PRIME DP - Unbound Medicine ER -