Search Results
Results 401 - 450 of 1557
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Thines Laurent - - 2007
The authors report on the case of a 15-year-old boy with Crouzon syndrome (CS) who presented with headache and facial diplegia. He had undergone several craniofacial interventions and a posterior fossa decompression for tonsillar herniation caused by the CS. A ventriculoperitoneal (VP) shunt had been inserted for hydrocephalus. Emergency computed ...
Bharucha Diana X - - 2007
Ophthalmoplegic migraine (also recognized as a cranial neuralgia) is a form of migraine characterized by recurrent episodes of headache with ophthalmoplegia related to paresis of cranial nerves III, IV, or VI, with onset typically in childhood. These symptomatic episodes may persist for several hours or for several weeks, months, or ...
Saito David M - - 2007
OBJECTIVES: To determine if preoperative radiographic cross-sectional images can predict the nerve of origin of a parapharyngeal schwannoma and, specifically, whether it originates from the vagus nerve or the cervical sympathetic chain. DESIGN: A retrospective review. SETTING: Academic medical center. PATIENTS: The study population comprised 12 patients who underwent surgical ...
Wuerfel Jens - - 2007
The value of experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis, in deriving novel diagnostic and therapeutic input has been subject to recent debate. This study is the first to report a disseminated distribution of plaques including cranial nerves, prior to or at early stages of disease in ...
Reddy Arun K - - 2007
About 80% of cat-scratch disease (CSD) infections occur in children, and CSD neuroretinitis (optic neuropathy with retinal exudates in a "macular star" pattern) mostly occurs in children and young adults. A recent study suggested that CSD optic neuropathy has specific features on MR imaging. However, MR imaging findings in CSD ...
Miyashita Takenori - - 2007
Facial nerve hemangioma is a rare benign tumor that originates from the venous plexus surrounding the facial nerve. A case of facial nerve hemangioma in the geniculate ganglion was reported. A 47-year-old man was referred with a left progressive facial palsy over 1 year. There were no complaints of associated ...
Hanna Ehab - - 2007
OBJECTIVE: To evaluate the sensitivity and specificity of computed tomography (CT) and magnetic resonance imaging (MRI) in detecting perineural spread (PNS) of adenoid cystic carcinoma of the head and neck to the skull base. DESIGN: Adenoid cystic carcinoma of the head and neck frequently exhibits PNS across the skull base. ...
Hari Smriti - - 2007
A 14-year-old girl on multidrug treatment for borderline tuberculoid leprosy presented with a swelling in her left arm and soon thereafter developed ulnar claw hand. MRI showed a well-defined ovoid lesion arising from the left ulnar nerve, isointense to muscle on T1W images and hyperintense on T2W and STIR images. ...
Mobbs Ralph J - - 2007
We illustrate a patient with a migrating lumbar disc fragment that caused a change in radicular symptoms from the L3 nerve root on one side to the L5 nerve root on the contralateral side, documented by magnetic resonance imaging (MRI). Our patient presented with 3 months of L3 pain on ...
Padua L - - 2007
In the presence of sensitive symptoms along the lumbar-sacral dermatomeric region, it is easy to suspect a lumbar-sacral radiculopathy, it being a very common disease. Clinical evaluation, neurophysiology and magnetic resonance imaging are common tools in diagnosing lumbosacral radiculopathy. Nevertheless, sometimes tumour may mimic radiculopathy. With the improvement of ultrasound, ...
Pilyugina Svetlana A - - 2007
An otherwise healthy 12-month-old girl presented for evaluation of reduced abduction of the left eye detected at 6 months of age. The remainder of the examination was unremarkable. A special MRI sequence-fast imaging employing steady-state acquisition (FIESTA)-visualized the right but not the left sixth nerve cisternal segment. This is the ...
Hosler Matthew R - - 2007
A 28-year-old woman with a 6-year history of optic neuropathy and 8 years of hearing loss had enhancing dural lesions around the brain stem and in both internal auditory canals on MRI. Histopathology from cranial procedures performed in 1990 and 1993 was originally interpreted as inflammatory meningioma, now known as ...
Brisse Hervé J - - 2007
BACKGROUND: Detection of optic nerve invasion is mandatory in children primarily enucleated for retinoblastoma to ensure a free resection margin. OBJECTIVE: To assess the accuracy of CT and MRI for the detection of postlaminar invasion in normal-size nerves. MATERIALS AND METHODS: A total of 150 patients enucleated for retinoblastoma were ...
Aota Yoichi - - 2007
STUDY DESIGN: Retrospective case series with a control group. OBJECTIVE: To measure the diagnostic performance of magnetic resonance imaging (MRI) and MR myelography (MRM) for symptomatic foraminal stenosis in patients who need surgery. SUMMARY OF BACKGROUND DATA: MR images are extensively used in the evaluation of foraminal stenosis and are ...
Graham R M - - 2007
The case of a patient with an unusual cause of an isolated hypoglossal nerve palsy is presented. Magnetic resonance (MR) imaging demonstrated marked dilatation and ectasia of the right vertebral artery and basilar artery, thereby causing compression of the brainstem. It is therefore proposed that a dilated vascular loop compression ...
Cilliers Deirdre - - 2007
We report a further two patients with cerebro-facio-thoracic dysplasia, a rare autosomal recessive condition with thoracic costovertebral dysplasia, developmental delay and characteristic facial features. One of our patients has the additional features of large, bilateral colobomas of the optic nerve, ptosis, small conical teeth and severe left-sided talipes. He also ...
Hickman Simon J - - 2007
In this article I review the last 10 years of progress in the imaging of the optic nerve with a particular focus on applications to multiple sclerosis (MS). Development of magnetic resonance imaging (MRI) of the optic nerve has lagged behind imaging of other parts of the CNS. These limitations ...
Armstrong G T - - 2007
BACKGROUND AND PURPOSE: Optic nerve tortuosity is one of several nonmalignant abnormalities documented on MR imaging in patients with neurofibromatosis type 1 and may be related to the development of optic pathway gliomas. This study seeks an operational definition for optic nerve tortuosity. MATERIALS AND METHODS: A focus group of ...
Trimble Keith - - 2007
OBJECTIVE: To investigate and compare the usefulness of preoperative magnetic resonance (MR) imaging and high-resolution temporal bone computed tomography (HRCT) in pediatric cochlear implant candidates. STUDY DESIGN: Prospective. SETTING: Tertiary referral center. PATIENTS: A cohort of 92 pediatric patients with profound hearing. Inclusion criteria were MR, computed tomography, and cochlear ...
van der Steenstraten Femke - - 2007
OBJECTIVES: We sought to confirm earlier findings in the literature that microvascular compression of the vestibulocochlear nerve might cause unilateral sensorineural hearing loss. We measured the length and width of the internal auditory canal (IAC) to investigate a possible association between a narrow porus, the presence of an anterior inferior ...
Lim Key Hwan KH Jules Stein Eye Institute, Department of Ophthalmology, University of California-Los Angeles, 100 Stein Plaza, Los Angeles, CA 90095, - - 2007
High-resolution magnetic resonance imaging (MRI) can now directly demonstrate innervation to extraocular muscles and quantify optic nerve size. A quantitative MRI technique was developed to study the oculomotor nerve (CN3) and applied to congenital fibrosis of extraocular muscles (CFEOM) and congenital oculomotor palsy. The subarachnoid portions of the CN3s were ...
Hashiguchi Kimiaki - - 2007
INTRODUCTION: The aim of this study was to evaluate three-dimensional Fourier transformation-constructive interference in steady-state (CISS) imaging as a preoperative anatomical evaluation of the relationship between the placode, spinal nerve roots, CSF space, and the myelomeningocele sac in neonates with lumbosacral myeloschisis. METHODS: Five consecutive patients with lumbosacral myeloschisis were ...
Pichiecchio A - - 2007
We report on clinical and instrumental findings of a multiple sclerosis (MS) patient with sudden right trigeminal neuralgia (TN). Magnetic resonance imaging (MRI), performed at TN onset, showed enlargement of both trigeminal nerves (TrN) at the root entry zone, with gadolinium enhancement of the cisternal portion. This is the first ...
Melzi L - - 2007
Eleven consecutive patients with a first episode of acute optic neuritis were evaluated, using conventional and magnetization transfer (MT) magnetic resonance imaging (MRI), in order to assess the temporal evolution of optic nerve (ON) damage and to investigate the correlation of ON damage with visual outcome and electrophysiological parameters. Patients ...
Tubbs R Shane - - 2007
The sphenoid ridge (posterior aspect of the lesser wings) is encountered in many intracranial procedures. Increased knowledge of its morphology and relationships is, therefore, of importance to the neurosurgeon and clinician who appreciate imaging of this anatomical region. We have quantitated this part of the sphenoid bone in dry human ...
Minville Vincent - - 2007
BACKGROUND: The authors describe a new lateral approach to the sciatic nerve (SN) block in the popliteal fossa by using magnetic resonance imaging (MRI) and assessed its clinical feasibility. METHODS: The authors reviewed the MRI of the SN of 40 patients to compare a new landmark with the classical one. ...
Schultz Ryan M - - 2007
The medical records and magnetic resonance (MR) images of dogs with an acquired trigeminal nerve disorder were reviewed retrospectively. Trigeminal nerve dysfunction was present in six dogs with histologic confirmation of etiology. A histopathologic diagnosis of neuritis (n=2) or nerve sheath tumor (n=4) was made. Dogs with trigeminal neuritis had ...
Yu Zilong - - 2007
CONCLUSIONS: High resolution CT imaging can provide useful information about the pathological exposure of the mastoid portion of the facial nerve before mastoid surgery and can assess the injury site of the facial nerve after operation. OBJECTIVES: To evaluate the diagnostic value of high resolution CT scanning of pathological exposure ...
Lee Hsin-Hua - - 2007
Schwannoma of the hypoglossal nerve is extremely rare. We report the clinical manifestations of a patient with Schwannoma of the hypoglossal nerve with hemi-atrophy of the tongue and numbness in the lip. Magnetic resonance image study of the brain showed a lobulated mass at the right posterior fossa with an ...
Mathur S - - 2007
A 60-year-old woman developed right-eye vision loss secondary to rhinocerebral mucormycosis. Routine MR imaging sequences including enhanced MR imaging showed normal optic nerves, but a diffusion-weighted sequence and apparent diffusion coefficient maps revealed markedly restricted diffusion in the right optic nerve. This MR imaging abnormality of optic nerve infarction due ...
Finsterer Josef - - 2007
The association of pseudotumor cerebri, visual impairment, hypothyroidism, polycystic ovary syndrome (PCOS), and a hypercoagulable state due to a factor V and a prothrombin mutation has not been reported previously. A 20-year-old obese woman developed menstrual cycle irregularities since age 14 years, initially bitemporal and latter diffuse headache since age ...
Magliulo G - - 2007
AIM: To establish if the computed tomography (CT) and magnetic resonance imaging (MRI) appearances of the vestibule, after the removal of vestibular schwannoma by a modified translabyrinthine approach, correlate with a successful outcome, defined as hearing preservation. MATERIALS AND METHODS: Our study group consisted of 16 patients with vestibular schwannoma. ...
Borges Alexandra - - 2007
Many disease processes manifest either primarily or secondarily by cranial nerve deficits. Neurologists, ENT surgeons, ophthalmologists and maxillo-facial surgeons are often confronted with patients with symptoms and signs of cranial nerve dysfunction. Seeking the cause of this dysfunction is a common indication for imaging. In recent decades we have witnessed ...
Pandey Pramod Kumar - - 2007
We report a patient with bilateral incyclotorsion, asymmetric facial palsy, monocular depression deficiency, and unilateral Type 3 Duane syndrome, along with contralateral anotia and a midline cleft palate. A dysplastic middle ear cavity and unilateral absence of the facial nerve were noted on magnetic resonance imaging scanning. The differential diagnosis ...
Borges Alexandra - - 2007
There have been unprecedented improvements in cross-sectional imaging in the last decades. The emergence of volumetric CT, higher field MR scanners and higher resolution MR sequences is largely responsible for the increasing diagnostic yield of imaging in patients presenting with cranial nerve deficits. The introduction of parallel MR imaging in ...
Biega T J - - 2007
The cases presented are rare examples of congenital nystagmus associated with isolated absence of the optic chiasm. MR imaging in both patients demonstrated unremarkable anterior optic pathways and optic tracts. No additional midline central nervous system abnormalities, migrational anomalies, space-occupying lesions, or destructive processes were noted. These cases demonstrate that ...
Gurschi, Mariana
Neurovascular compression of the trigeminal nerve by an overlying vessel, mostly at the root entry zone is considered to be the major cause of trigeminal neuralgia (TGN). The most prevalently used operation technique in patients with trigeminal neuralgia is the microvascular decompression (MVD). Peter Jannetta was the first neurosurgeon to ...
Tsuchiya Kazuhiro - - 2007
PURPOSE: Diffusion-weighted (DW) magnetic resonance (MR) imaging of the nerve roots and peripheral nerves has been reported. We applied a sequence similar to brain diffusion tensor (DT) tractography to such a technique and assessed its feasibility. METHODS: On a 1.5-T MR system, we acquired DW images in the axial plane ...
Kim J Y - - 2007
AIM: To present magnetic resonance imaging (MRI) findings of non-traumatic peroneal nerve palsy and to evaluate the usefulness of MRI in patients with non-traumatic peroneal nerve palsy. MATERIALS AND METHODS: In a retrospective study, 11 consecutive patients presenting with peroneal nerve palsy were included. MR images of the lower leg ...
Singh Tarvinder - - 2007
Recent advancements in the field of imaging, particularly magnetic resonance imaging, have improved the way peripheral nerve tumors are diagnosed, monitored, and treated both medically and surgically. When combined with the all-important clinical evaluation and electrodiagnostic studies, imaging permits a clinician to accomplish the following: identify the size, shape, location, ...
Komatsubara Sachiko - - 2007
The route of the cochlear nerve can be imaged using computed tomography (CT) or magnetic resonance imaging (MRI). To gain information about the cochlear nerve, we conducted a trial measuring the width of the cochlear nerve canal (CNC) using CT. When we examined images of the route of the cochlear ...
Losowska-Kaniewska D - - 2007
Hydrocephalus is characterized by an imbalance of cerebrospinal fluid (CSF) formation and absorption. It is manifested as a dilatation of the ventricular system. About 55% of all hydrocephalus cases have congenital origin. There are two types of hydrocephalus: communicating and non-communicating with subarachnoid space and the diagnosis depends on the ...
Harbaugh Kimberly - - 2007
Schwannomatosis is the most recently recognized form of neurofibromatosis in which patients harbor multiple non-vestibular nerve schwannomas. The diagnosis is contingent on excluding neurofibromatosis Type 2 (NF2), to which it is related. The authors present a case of schwannomatosis diagnosed fortuitously when a preoperative magnetic resonance (MR) image of a ...
Goadsby P J - - 2007
The trigeminal autonomic cephalalgias (TACs) are a group of primary headache syndromes characterised by intense pain and associated activation of cranial parasympathetic autonomic outflow pathways out of proportion to the pain. The TACs include cluster headache, paroxysmal hemicrania and SUNCT (short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing). ...
Bachmann Talis - - 2007
Research on the perception of facial attractiveness has been dominated by aspects of averageness, symmetry, and secondary sex characteristics of faces. Almost absent is systematic research on the spatial scale (coarseness) of detail sufficient to carry information about facial attractiveness. In the present study, subjects were asked to evaluate the ...
Vaphiades Michael S - - 2007
A 36-year-old man developed acute visual loss, mimicking an optic neuritis in the left eye. Cranial magnetic resonance imaging revealed a sphenoid sinus mucocele with extension into the anterior clinoid process abutting the left optic nerve. Endoscopic marsupialization of the mucocele led to marked improvement of vision. Sphenoid sinus mucocele ...
Yamazaki Hiroshi - - 2007
BACKGROUND: The authors describe a new computerized tomography (CT) myelography technique with coronal and oblique coronal view to demonstrate the status of the cervical nerve rootlets involved in brachial plexus injury. They discuss the value of this technique for diagnosis of nerve root avulsion compared with CT myelography with axial ...
Munakata Akira - - 2007
BACKGROUND: This study was performed to reveal the incidence and the etiology of abducens nerve pareses associated with aneurysmal subarachnoid hemorrhage. METHODS: At the time of admission, CT scan was carried out, and the thickness of the prepontine subarachnoid clot was measured. RESULTS: In total 101 patients met the study ...
Cho Y-S - - 2007
We report the MR imaging findings in a case of intracranial aspergillosis involving the internal auditory canal (IAC) and inner ear in an immunocompetent patient. The presence of rim enhancement of the vestibulocochlear nerve, abnormal signal intensity involving the labyrinth, and adjacent meningeal enhancement might help clinicians to make a ...
Kraft Susan - - 2007
Magnetic resonance imaging (MRI) examinations from 18 dogs with a histologically confirmed peripheral nerve sheath tumor (PNST) of the brachial plexus were assessed retrospectively. Almost half (8/18) had a diffuse thickening of the brachial plexus nerve(s), six of which extended into the vertebral canal. The other 10/18 dogs had a ...
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