Search Results
Results 351 - 400 of 1533
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Demer Joseph L - - 2007
The authors used magnetic resonance imaging (MRI) to study extraocular muscles (EOMs) and nerves in Duane-radial ray (Okihiro) syndrome (DRRS) caused by mutations in the transcription factor SALL4. The authors examined four male and two female affected members of a pedigree previously reported to cosegregate DRRS and a heterozygous SALL4 ...
Sempere-Ortega C - - 2008
We report the CT and MR imaging findings in a patient with malignant peripheral nerve sheath tumor in the right nasolabial area, which exhibited typical imaging features of cystic adenoid carcinoma.
Song Su Jin - - 2008
OBJECTIVE: The purpose of our study is to evaluate imaging features suggestive of a conjoined nerve root on routine axial MRI. METHODS: Two radiologists and two surgeons retrospectively reviewed the MRI of three cases in which a conjoined nerve root was discovered during operation and found three suggestive signs on ...
Naja Zoher M - - 2007
Myofascial pain syndrome (MPS) may persist for many years and is often refractory to traditional therapeutic approaches including pharmacotherapy, focal tenderness infiltration by local anesthetic and corticosteroids, physical therapy and behavioral modification. This report describes three cases of MPS following coronary artery bypass graft, inadequate positioning during abdominal hysterectomy, and ...
Wessig Carsten - - 2008
Nerve imaging by magnetic resonance imaging (MRI) is an emerging tool for the diagnostic work-up of patients with PNS disorders. We have recently shown that the experimental MR contrast agent gadofluorine M (Gf, Bayer Schering Pharma AG, Berlin) accumulates in nerves undergoing Wallerian degeneration and in areas of acute focal ...
Lee Richard G - - 2007
We describe the case of a 28-year-old woman who presented with an acute dense left facial paralysis. Magnetic resonance imaging demonstrated enhancement of the labyrinthine portion of the facial nerve, and Bell's palsy was the presumed initial diagnosis. After 2 months without recovery despite receiving steroid and antiviral therapy, the ...
Kerimoglu U - - 2007
Paradoxic hypertrophy of nerve tissue at an amputation stump without neuroma formation rarely develops in young patients, in contrast to atrophy of the nerve in older patients. Herein, we present the magnetic resonance imaging (MRI) findings of adult patients (older than 20 years old) who underwent above-knee amputation, one of ...
Nguyen Doris - - 2007
A progressive radial neuropathy of unknown etiology despite 1.5T magnetic resonance imaging (MRI) and surgical exploration was identified as an intraneural perineurioma by a localized Tinel's sign, an enlarged radial nerve at the spiral groove by 3.0T MRI, and a fascicular biopsy. The distinction between the initial diagnoses of inflammatory, ...
Taghipour M - - 2008
Intradural nerve root hematoma of the lumbar spine is extremely rare and can cause compression of the cauda equina. This case, which presented with low back pain and radiation to both lower extremities, diagnosed as an intradural hematoma of nerve root by magnetic resonance imaging (MRI) and was totally removed ...
Turan Ilica Ahmet - - 2008
A 34-year-old man presented with a 15-month history of pain along the left sciatic nerve. Radiographs and computed tomography (CT) revealed an exostosis on the postero-inferior aspect of the left femoral neck. Ultrasonographic examination of left upper thigh and a pelvic magnetic resonance (MR) imaging showed an enlarged sciatic nerve ...
Dunn Andrew J - - 2007
OBJECTIVE: To study and characterise the MR imaging findings of lesions of the anterior interosseous nerve (AIN). MATERIALS AND METHODS: Magnetic resonance imaging (MRI) findings of the forearm of ten patients referred to our institution with suspected AIN lesions were retrospectively studied. Five healthy volunteers with normal forearm MRI findings ...
Kale H A - - 2007
Chronic inflammatory demyelinating polyneuropathy is a rare autoimmune disorder characterized by chronically progressive or relapsing symmetric sensorimotor involvement. We describe the imaging findings in our patient. Magnetic resonance imaging showed presence of an intracranial white matter lesion and enhancing, thickened cranial and spinal nerves. This disorder has been described very ...
Kikkawa Y - - 2007
Hypoglossal neurinomas usually manifest with hemiatrophy and weakness of the tongue. A rare case of intracranial hypoglossal neurinoma without preoperative hypoglossal nerve dysfunction and its operative view are presented. A 36-year-old female who presented with headaches and vertigo was admitted to our hospital. The neurological examination revealed bilateral papilledema and ...
Panicker J - - 2007
A 37-year-old gentleman presented with macrocephaly since early childhood and progressive impairment of motor and cognitive functions. Magnetic resonance imaging revealed extensive white matter involvement and frontotemporal subcortical cysts. Absent ankle jerk and abnormal nerve conduction study raised a possibility of associated peripheral neuropathy. Sural nerve biopsy was suggestive of ...
Jain T P - - 2007
Fibrolipomaous hamartoma is a benign neoplasm of nerves, resulting from anomalous growth of fibroadipose tissue of the nerve sheath. The median nerve is the most commonly involved nerve. Magnetic resonance imaging (MRI) features are pathognomonic, showing a coaxial cable-like appearance on axial images and spaghetti-like appearance on coronal images. Preferred ...
Thömke Frank - - 2007
There is a suprasegmental influence on the masseter reflex (MassR) in animals, which is mediated via the fifth nerve spinal nucleus (5SpN). Corresponding data in humans are lacking. Out of 268 prospectively recruited patients with clinical signs of acute brainstem infarctions, we identified 38 with magnetic resonance imaging (MRI)-documented unilateral ...
Lin Shan C - - 2007
To evaluate the current published literature on the use of optic nerve head (ONH) and retinal nerve fiber layer (RNFL) measurement devices in diagnosing open-angle glaucoma and detecting progression. A search of peer-reviewed literature was conducted on February 15, 2006 in PubMed and the Cochrane Library for the period January ...
Rodriguez Kimsey H - - 2007
OBJECTIVE: To evaluate the presentation, imaging characteristics and treatment outcome of pleomorphic adenoma of the parotid in the pediatric population. DESIGN: Retrospective study with institutional review board approval. SETTING: Tertiary care pediatric medical center. METHODS: An extensive review of medical records with regard to presentation, imaging, histopathology, complication, recurrence and ...
Sasaki Masayuki - - 2008
We report magnetic resonance (MR) findings in a patient with congenital unilateral facial palsy and a patient with atypical Moebius syndrome. MR imaging showed a complete deficiency of right facial nerve in the patient with congenital unilateral facial palsy and bilateral, thin proximal facial nerves in the Moebius syndrome patient. ...
Jou I-Ming - - 2007
STUDY DESIGN: We evaluated electrophysiologic changes of the cauda equina after lumbar laminotomy in rats. OBJECTIVE: To clarify immediate and long-term electrophysiologic and neurologic responses in an experimental postlaminotomy animal fibrosis model. SUMMARY OF BACKGROUND DATA: Postspinal surgery-induced epidural fibrosis is assessed using either Gadolinium- enhanced magnetic resonance imaging (MRI) ...
Thurtell Matthew J - - 2007
We report a patient who presented with acute painful monocular visual loss reminiscent of idiopathic optic neuritis. After treatment with corticosteroids was commenced, an anterior clinoid mucocele causing compressive optic neuropathy was demonstrated on imaging studies. The diagnosis was proven histopathologically following excision of the lesion via craniotomy. Although very ...
Clippinger Tracy L - - 2007
The purpose of this article is to guide the avian clinician in the assessment of neurologic function in birds. Physical and neurologic examinations that evaluate cranial nerves, postural reactions, and spinal reflexes identify neurologic dysfunction and the corresponding anatomic location of the lesion. Ancillary diagnostic tests, such as cerebrospinal fluid ...
Sudhoff Holger - - 2008
Computerized tomography (CT) scanning is a well recognised tool for the diagnosis of malignant external otitis. To investigate the degree of correlation between CT findings scan and the patients clinical status focusing on a subgroup of patients with cranial nerve palsies. Diagnosis of malignant external otitis was confirmed in 23 ...
Fujimoto Chisato - - 2007
OBJECTIVES: We report, with neuro-otologic findings, a very rare case of a large jugular bulb diverticulum eroding the internal auditory canal (IAC). METHODS: We present the imaging and functional studies of a 29-year-old woman in whom a large jugular bulb diverticulum on the left side was found incidentally. RESULTS: Imaging ...
Geran Laura C - - 2007
In spite of its common use as a standard stimulus in peripheral nerve recordings, relatively little is known about the psychophysics of NH-sub-4Cl taste. Rats' detection threshold for this salt was tested under a variety of conditions, including amiloride (100 muM) treatment and bilateral chorda tympani (CT) nerve transection. Detectability ...
Yazici Zeynep - - 2007
PURPOSE: To evaluate morphologic changes occurring in the retrobulbar region after optic nerve sheath decompression (ONSD) in patients with idiopathic intracranial hypertension using magnetic resonance (MR) imaging. DESIGN: Prospective observational study. METHODS: This study included 26 eyes of 17 patients (age range, nine to 57 years) with idiopathic intracranial hypertension ...
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 - - 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 ...
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