Abstract:
:A 64-year-old female presented with right trigeminal neuralgia. Computed tomography and magnetic resonance (MR) imaging demonstrated a tumor attached to the right petrous apex. MR imaging also revealed that the trigeminal nerve was compressed and distorted by the tumor. Tumor removal and microvascular decompression (MVD) were performed via the anterior petrosal approach. The trigeminal nerve was distorted by the tumor and the superior cerebellar artery compressed the medial part of the root entry zone of the trigeminal nerve. The surgery resulted in complete relief of the trigeminal neuralgia. Posterior fossa tumors causing ipsilateral trigeminal neuralgia are not rare, and are often removed via the suboccipital retromastoid approach, as MVD for trigeminal neuralgia is usually performed through the retromastoid approach. The advantages of the anterior petrosal approach are shorter access to the lesion and direct exposure without interference from the cranial nerves, and that bleeding from the tumors is easily controlled as the feeding arteries can be managed in the early stage of the surgery. We conclude that the anterior petrosal approach is safe and advantageous for the removal of petrous apex tumor associated with trigeminal neuralgia.
journal_name
Neurol Med Chir (Tokyo)journal_title
Neurologia medico-chirurgicaauthors
Kuroki A,Kayama T,Song J,Saito Sdoi
10.2176/nmc.39.447keywords:
subject
Has Abstractpub_date
1999-06-01 00:00:00pages
447-51issue
6eissn
0470-8105issn
1349-8029pii
JST.Journalarchive/nmc1959/39.447journal_volume
39pub_type
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