Na+,K+ ATPase and myelin-associated glycoprotein (MAG) were studied by immunocytochemistry on paraffin sections of the spinal cord, optic nerve and trigeminal ganglion of adult control (+/+) and CNS myelin-deficient shiverer (shi/shi) mice. Immunostaining for Na+, K+-ATPase outlined the periphery of nerve fibers in the spinal cord white matter, optic nerve and trigeminal ganglion of +/+ and shi...

Trigeminal neuropathy of neoplastic origin accounts for a small percentage of trigeminal neuropathies, though the prognosis may be very poor. It is important to discard neoplastic processes in patients with numbness of the trigeminal territory. We present 7 cases of trigeminal neuropathy secondary to tumors: in four cases there were antecedents of systemic neoplastic disease, while in the remai...

Trigeminal neuralgia is a facial pain syndrome that occurs repeatedly and chronically on one side of the face following distribution trigeminal nerve branches. estimated to be around 0.16%-0.3%, with an incidence rate 4-29 people per 100,000 people/year, higher in women than men (ratio 3:2). The increases age. causes are divided into two types, classic symptomatic. main mechanism compression by...

Cervicogenic headache is a syndrome characterized by chronic hemicranial pain that is referred to the head from either bony structures or soft tissues of the neck. The trigeminocervical nucleus is a region of the upper cervical spinal cord where sensory nerve fibers in the descending tract of the trigeminal nerve (trigeminal nucleus caudalis) are believed to interact with sensory fibers from th...

A 49-year-old woman presented with a 3-week history of headaches and numbness of the face, mouth, and ear on the left side. Her medical history was significant for diffuse large cell lymphoma, first diagnosed 6 years previously. She was in her third remission and had been free of disease for 2 years. A contrast-enhanced CT scan showed an enhancing mass in the anterior aspect of the cerebellopon...

Vascular compression of the trigeminal nerve in the cerebellopontine angle is now generally accepted as the primary source or "trigger" causing trigeminal neuralgia. A clear clinicopathological association exists in the neurovascular relationship. In general, pain in the third division of the trigeminal nerve is caused by rostral compression, pain in the second division is caused by medial or m...

  Ancient schwannomas rarely found in the central nervous system and ancient change in an intracranial schwannoma (intracranial portion of the trigeminal nerve) is extremely rare. A seventy-year man presented with headache of 3 months duration and one episode of generalized tonic-clonic seizures. Imaging findings were suggestive of left temporal high grade lesion. During surgery there was well...

Trigeminal neuritis usually is caused by an inflammatory reaction to herpes simplex virus, which often resides within the gasserian ganglion of the trigeminal nerve. Transaxonal movement of the virus between the ganglion and peripheral nerves within the oral cavity has been documented [1 , 2]. The virus can be isolated from the painful aphthous ulcers within the oral cavity and the typical cold...

Trigeminal neuralgia (TN) is a neuropathic pain condition affecting the face. It has a significant impact on the quality of life and physical function of patients. Evidence suggests that the likely etiology is vascular compression of the trigeminal nerve leading to focal demyelination and aberrant neural discharge. Secondary causes such as multiple sclerosis or brain tumors can also produce sym...

Background: Trigeminal schwannomas may originate from the root, the ganglion, or the peripheral branches of the trigeminal nerve. Trigeminal schwannomas are rare tumors that comprise of 0.2% of all intracranial tumors. Objective: To clarify the pattern of trigeminal schwannomas in relation with meninges for surgical considerations. Methods: We used 3 adults head cadaver specimens were used for ...