Published: 2016-12-30

Trigeminal nerve schwannoma

Prashant Kashyap, Dhaval Dave, Prashant Melmane, Archana Bhate


Trigeminal schwannomas are uncommon slow growing encapsulated tumours composed of schwann cells. Trigeminal schwannomas are the second most common type of schwannoma, after the far more common acoustic schwannoma. In this case definite diagnosis could not be made after 1 CT (computerized tomography) scan and 3 MRI (magnetic resonance imaging) (outside hospital) but finally after proper clinical examination and discussion with radiologist about the best diagnostic imaging in this case we reached to a diagnosis of trigeminal nerve schwannoma after MRI brain with contrast.


Trigeminal schwannoma, Rare case, Diagnostic challenge, Proper clinical evaluation, MRI brain, Skull base surgery

Full Text:


References articles/ trigeminal schwannoma.

Horie Y, Akag S, Taguchi K, Yoshino T, Hayashi K, Takahashi K et al. Malignant schwannoma arising in the intracranial trigeminal nerve: a report of an autopsy case and a review of the literature. Acta Pathol Jpn. 1990;40:219-25.

Maroun FB, Sadler M, Murray GP, Mangan M, Mathieson G, Jacob JC, et al. Primary malignant tumours of the trigeminal nerve. Can J Neurol Sci. 1986;13:146-148.

Hedeman LS, Lewinsky BS, Lochridge GK, Trevor R. Primary malignant schwannoma of gasserian ganglion. J Neurosurg. 1978;48:279-83.

Yuh WT, Wright DC, Barloon TJ, Schultz DH, Sato Y, Cervantes CA. MR imaging of primary tumors of trigeminal nerve and Meckel's cave.AJR 1988;151(3):577-82.

Majoie CB, Verbeeten B Jr, Dol JA, Peeters FL. Trigeminal neuropathy: evaluation with MR imaging. Radiographics. 1995;15(4):795-811.

Hutchins LG, Harnsberger HR, Hardin CW, Dillon WP, Smoker WR, Osborn AG. The radiologic assessment of trigeminal neuropathy. AJR. 1989;153(6):1275-82.

Kornienko VN, Pronin IN. Diagnostic Neuroradiology. Springer Verlag. 2008 ISBN:3540756523.

Som PM, Curtin HD. Head and neck imaging. Mosby Inc. 2003 ISBN:0323009425.