Contralateral Trigeminal Neuralgia Research Articles

Letter to the Editor Regarding “Delayed Contralateral Trigeminal Neuralgia after Microvascular Decompression and Postoperative Changes in Venous Outflow”

Letter to the Editor Regarding “Delayed Contralateral Trigeminal Neuralgia after Microvascular Decompression and Postoperative Changes in Venous Outflow”

In Reply to the Letter to the Editor Regarding “Delayed Contralateral Trigeminal Neuralgia After Microvascular Decompression and Postoperative Change in Venous Outflow”

In Reply to the Letter to the Editor Regarding “Delayed Contralateral Trigeminal Neuralgia After Microvascular Decompression and Postoperative Change in Venous Outflow”

Contralateral trigeminal neuralgia in a rapidly growing vestibular schwannoma: A case report

We present a rare case of vestibular schwannoma (VS) with contralateral trigeminal neuralgia. A 59 year-old woman presented with right-sided trigeminal neuralgia and a small VS in the left cerebellopontine angle (CPA) that was found via magnetic resonance imaging. The patient was administered medication; however, her symptoms gradually aggravated, and the size of the tumor increased. Two years after the initial diagnosis, the patient underwent surgical resection. After surgical resection, the patient’s facial pain was improved. The trigeminal neuralgia appeared to be related to brainstem displacement caused by the contralateral VS. For VS with contralateral trigeminal neuralgia, surgical resection of the tumor should be considered as a possible treatment strategy.

Single-Session Gamma Knife Stereotactic Radiosurgery for Contralateral Vestibular Schwannoma and Trigeminal Neuralgia

Introduction: Gamma Knife stereotactic radiosurgery (SRS) is a well-established treatment modality for both vestibular schwannoma (VS) and trigeminal neuralgia (TN). In rare cases, VS patients present with TN symptoms attributable to mass effect at the trigeminal root entry zone, which typically improves following tumor treatment. We report a patient with contralateral TN and VS, both treated via single session SRS.

Tentorial dural arteriovenous fistula manifesting as contralateral trigeminal neuralgia: resolution after transarterial Onyx embolization

Tentorial dural arteriovenous fistula (DAVF) as a cause of trigeminal neuralgia is extremely rare. Although less than 10 cases have been reported in the literature, all cases presented with ipsilateral...

Tactile Stimulation and Mastication Induced Contralateral Trigeminal Neuralgia after Bell’s Palsy

We report a 43-year old woman patient presented with contralateral trigeminal neuralgia induced by tactile stimulation and mastication after Bell’s palsy. Trigeminal neuralgia is characterized by recurrent episodes of intense lancinating pain affecting the face localized to the sensory supply areas of the trigeminal nerve. Increased excitability of facial motor neurons and bainstem interneurons which mediate trigemio-facial reflex are thought to be the cause of contralateral trigeminal neuralgia after Bell’s palsy.

Structural abnormalities of the trigeminal root revealed by diffusion tensor imaging in patients with trigeminal neuralgia caused by neurovascular compression: A prospective, double-blind, controlled study

Because diffusion tensor imaging (DTI) is able to assess tissue integrity, we used diffusion to detect abnormalities in trigeminal nerves (TGN) in patients with trigeminal neuralgia (TN) caused by neurovascular compression (NVC). We also studied anatomical TGN parameters (cross-sectional area [CSA] and volume [V]). Using DTI sequencing in a 3-T magnetic resonance imaging (MRI) scanner, we measured the fraction of anisotropy (FA) and the apparent diffusion coefficient (ADC) of TGN in 10 patients selected as candidates to have microvascular decompression (MVD) for TN, and 6 normal control subjects. We compared data between the affected nerves of TN (ipsilateral TN), unaffected nerves of TN (contralateral TN), and both nerves in normal subjects (controls), and correlated these data with CSA and V. The FA of the ipsilateral TN (0.37±0.08) was significantly lower (P<.05) compared with the contralateral TN (0.48±0.08) and control values (0.52±0.04). The ADC of ipsilateral TN (5.6±0.89mm2/s) was significantly higher (P<.05) compared with the contralateral TN (4.26±0.59mm2/s) and control values (3.84±0.43mm2/s). Ipsilateral TN had less V and CSA compared with contralateral TN and control values (P<.05). The Spearman correlation coefficient showed a strong positive correlation between loss of FA and loss of V (r=0.7576) and loss of CSA (r=0.9273) of affected nerves. The Spearman correlation coefficient showed a strong negative correlation between increase in ADC and loss of V (r=−0.7173) and loss of CSA (r=−0.7416) in affected nerves. DTI revealed alteration in the FA and ADC values of the affected TGN. These alterations were correlated with atrophic changes in patients with TN caused by NVC.

Persistent trigeminal neuralgia after removal of contralateral posterior cranial fossa tumor. report of two cases.

BACKGROUND Contralateral trigeminal neuralgia as a false localizing sign in patients with posterior cranial fossa tumors is rare. Persistent contralateral trigeminal neuralgia after removal of the posterior fossa expanding lesion with microsurgical exploration of the affected trigeminal nerve root has been described in only a few reports. Displacement of the brainstem and the trigeminal nerve root, arachnoid adhesions, and vascular compression of the nerve root entry zone have been reported as causes of persistent contralateral trigeminal neuralgia. METHODS One patient developed transformation of the contralateral constant burning facial pain into trigeminal neuralgia after removal of a posterior fossa meningioma. A typical right-sided tic douloureux in our second patient did not disappear after removal of a left acoustic neurinoma. CT scan revealed brainstem displacement to the side of trigeminal neuralgia. Microsurgical exploration in both cases demonstrated the squeezed and distorted trigeminal nerve root and displaced brain stem with no vascular involvement. Both patients underwent partial trigeminal rhizotomy for pain control. RESULTS Complete disappearance of the trigeminal neuralgia was evident in both cases with postoperative facial sensory loss. The postoperative course in the first case was uneventful; the second patient died from purulent meningoencephalitis. CONCLUSION Persistent contralateral trigeminal neuralgia after removal of a posterior fossa tumor is caused by distortion of the fifth nerve root by the displaced brainstem. Partial trigeminal rhizotomy can be performed for alleviation of facial neuralgic pain in cases without neurovascular compression.

Arachnoid Cyst of the Cerebellopontine Angle Manifesting as Contralateral Trigeminal Neuralgia: Case Report

Abstract A case of an arachnoid cyst in the cerebellopontine angle manifesting as contralateral trigeminal neuralgia is presented. Decompression and excision of the lesion resulted in total relief of symptoms. The possible causes of contralateral trigeminal neuralgia are briefly reviewed, and the surgical treatment of this entity is discussed.

Arachnoid cyst of the cerebellopontine angle manifesting as contralateral trigeminal neuralgia

A case of an arachnoid cyst in the cerebellopontine angle manifesting as contralateral trigeminal neuralgia is presented. Decompression and excision of the lesion resulted in total relief of symptoms. The possible causes of contralateral trigeminal neuralgia are briefly reviewed, and the surgical treatment of this entity is discussed.

Contralateral trigeminal neuralgia as a false localizing sign in calcified chronic subdural hematoma: A case report

A case of trigeminal neuralgia caused by a contralateral calcified chronic subdural hematoma is reported. Preoperative magnetic resonance imaging revealed rotational displacement of the pons caused by huge chronic subdural hematoma. The neuralgia was completely alleviated after removal of the hematoma. The clinical and radiological features are described, and the possible mechanism of the neuralgia is briefly discussed.

Contralateral trigeminal neuralgia as a false localizing sign in intracranial tumors

Three cases of contralateral trigeminal neuralgia as a false localizing sign in intracranial tumors are reported. In each patient (meningioma, 2 cases; cholesteatoma, 1 case) the tumor was asymptomatic, so that intracranial tumor had not been suspected preoperatively. In all cases, tumors were large and firm. The tumor was supratentorial in two cases. In one case, a cortically mediated mechanism may have caused the neuralgia, whereas in the remaining two cases distortion and displacement of the brain stem and compression of the contralateral Meckel's cave would explain the trigeminal nerve signs. (Neurosurgery 20:1-3)