Search Results
Results 151 - 200 of 1537
1 2 3 4 5 6 7 8 9 10 >
Thawait S K - - 2011
SUMMARY: High-resolution MR imaging of peripheral nerves is becoming more common and practical with the increasing availability of 3T magnets. There are multiple reports of MR imaging of peripheral nerves in compression and entrapment neuropathies. However, there is a relative paucity of literature on MRN appearance of diffuse peripheral nerve ...
Kinori Michael - - 2011
Isolated cranial mononeuropathies in patients over 50 years of age most commonly result from microvascular ischemic demyelination. A 51-year-old female without vasculopathic risk factors presented with isolated sixth nerve palsy. Magnetic resonance imaging (MRI) of the brain and orbits revealed a cavernous sinus lesion that was diagnosed as a meningioma. ...
Tagliafico Alberto Stefano - - 2011
To describe the potential value of high-resolution sonography for evaluation of the musculocutaneous nerve (MCN). The normal anatomy of the MCN was evaluated on three cadaveric limbs and correlated with the US images obtained in 15 healthy subjects. Seven consecutive patients with MCN neuropathy were then evaluated with sonography using ...
Mulkey Sarah B - - 2010
Guillain-Barré syndrome diagnosis is based on clinical presentation and supportive diagnostic testing. In its early stage, no single, reliable diagnostic test is available. However, a finding of nerve root enhancement on spinal magnetic resonance imaging may be useful. We evaluated the frequency of nerve root enhancement on spinal magnetic resonance ...
Kakutani Kenichiro - - 2010
Case report. To describe a patient with nodular fasciitis in the sciatic nerve, detected by positron emission tomography (PET). Severe sciatic pain is commonly caused by lumbar disc herniation, lumbar spinal stenosis, or neoplastic lesion. These lesions are usually diagnosed by plain radiograph, myelography, computed tomography, and magnetic resonance imaging.Nodular ...
Niitsu Mamoru - - 2010
BACKGROUND: The clinical importance of Guyon's canal is emphasized due to the various branching patterns of the ulnar nerve. So far, the arborization pattern of the ulnar nerve in Guyon's canal has been investigated mostly by cadaveric studies. PURPOSE: To demonstrate anatomic variations of the ulnar nerve in Guyon's canal ...
Yan Liang - - 2010
Both computed tomography (CT) and magnetic resonance imaging (MRI) scans are used for the diagnosis of lumbar nerve root canal stenosis by imaging measurement, but the findings have considerable variability and the specificity of these examinations is difficult to estimate. A prospective study was conducted to determine the association between ...
Van Gompel Jamie J - - 2010
Sciatica is typically a clear-cut symptom complex commonly related to an impingement at the spinal nerve level. Etiologies of sciatic neuropathy outside the neural foramina are uncommon. To describe 4 patients presenting with radiating leg pain due to sciatic nerve involvement, all with a vascular etiology. Four patients presenting with ...
Chiang Chia-Ling - - 2010
Fibrolipomatous hamartoma is an uncommon congenital disorder, which is characterized by disproportionate hyperplasia of adipose tissue infiltrating along the perineurium, the epineurium and the affected nerve trajectory. We present a case of combined fibrolipomatous hamartoma and macrodystrophia lipomatosa of the median nerve. The involved sites included the left palm, wrist ...
Cooke Daniel L - - 2010
Background Flat panel detector CT (FD-CT), three-dimensional image overlay and navigation software on contemporary fluoroscopic units generate less radiation dose while performing imaging of comparable quality to conventional CT. They can superimpose MR and CT datasets and can accurately guide percutaneous procedures providing live instrument visualization and the capability of ...
Tavallali Ali - - 2010
PURPOSE: To report a patient with presumed nonarteritic anterior ischemic optic neuropathy (NAION) found on our evaluation to have bilateral uveal lymphoma. METHODS: The clinical history and physical examination, Humphrey visual field testing, ultrasonography, magnetic resonance imaging (MRI), and fine needle aspiration biopsy specimen of a 60-year-old man with presumed ...
Cohen Marc - - 2010
1. To retrospectively review the pathophysiology and radiologic features of delayed facial palsy after stapedectomy. 2. To discuss the cause and management strategy of this unusual problem. Four hundred fifty stapedectomies performed between 2001 and 2007 by a single surgeon were retrospectively reviewed. Two patients in this series developed a ...
Lee Richard W W - - 2010
We hypothesized that the facial phenotype is closely linked to upper airway anatomy. The aim of this study was to investigate the relationship between surface facial dimensions and upper airway structures using magnetic resonance imaging (MRI) in subjects with obstructive sleep apnea (OSA). Cohort study. Sleep investigation unit. Sixty-nine patients ...
Tripathy S - - 2010
Russell's viper is a commonly encountered venomous snake in India. Morbidity and mortality following envenomation and the treatment thereof are frequent. We report a rarely seen complication after a treated Russell's viper bite. A 36-year-old male farmer received 30 vials polyvalent anti-snake venom after a viper bite to his right ...
Fuakami Kaori - - 2011
To investigate buccal perimandibular neurovascularisation associated with the mandibular accessory buccal foramina (ABF) which were detected using a limited cone-beam computed tomography (limited CBCT). Five Japanese cadaveric mandibles had been examined using helical CT to investigate the presence or absence of ABF. Two mandibles indicating the presence of AMF were ...
Kato Hirotaka - - 2010
We report a 50-year-old man who suffered from 5 transient diplopia episodes in 16 months. His diplopia lasted between 2 weeks and 3 months and examination revealed isolated left abducens palsy during the attacks of diplopia. Magnetic resonance (MR) angiography and MR imaging with constructive interference in the steady state ...
Van Abel Kathryn M - - 2010
To describe the clinical and radiologic findings in a case of isotretinoin embryopathy-like syndrome and discuss management of hearing loss, congenital external auditory canal (EAC) stenosis, and EAC cholesteatoma. Review of medical, audiological, and radiological records. An 8 year old female presented with bilateral moderate conductive hearing loss, bilateral microtia, ...
Sheehan Jason P - - 2010
OBJECT: Trigeminal neuralgia is believed to be related to vascular compression of the affected nerve. Radiosurgery has been shown to be reasonably effective for treatment of medically refractory trigeminal neuralgia. This study explores the rate of occurrence of MR imaging-demonstrated vascular impingement of the affected nerve and the extent to ...
Petchprapa Catherine N - - 2010
Entrapment neuropathies can manifest with confusing clinical features and therefore are often underrecognized and underdiagnosed at clinical examination. Historically, electrophysiologic evaluation has been considered the mainstay of diagnosis. Today, cross-sectional imaging, particularly magnetic resonance (MR) imaging and specifically MR neurography, plays an increasingly important role in the work-up of entrapment ...
Roche Joseph P JP Department of Otolaryngology/Head and Neck Surgery, G190, Physician_s Office Building, CB 7070, 170 Manning Drive, Chapel Hill, NC 27599-7070, - - 2010
To identify and define the imaging characteristics of children with auditory neuropathy spectrum disorder (ANSD). Retrospective medical records review and analysis of both temporal bone computed tomographic (CT) and magnetic resonance images (MRI) in children with a diagnosis of ANSD. Tertiary referral center. One hundred eighteen children with the electrophysiologic ...
Yikilmaz Ali - - 2010
OBJECTIVE: To describe the spinal magnetic resonance imaging (MRI) features in children with Guillain-Barre syndrome (GBS) and to investigate the correlation with the clinical/laboratory findings. MATERIAL AND METHODS: Clinical/laboratory findings of 40 children (mean age 5.7 years; range, 3 months-15 years) who had a final diagnosis of GBS were retrospectively ...
Izumi Kouji - - 2010
We report 3 Japanese patients with cranial nerve deficit caused by skull metastasis of prostate cancer (PCa). Case 1 was a 75-year-old patient with a chief complaint of diplopia. The cause of diplopia was right oculomotor nerve palsy from the skull metastasis. External beam radiation therapy (EBRT) to the whole ...
Schoeman Johan F - - 2010
Blindness is an uncommon but devastating complication of tuberculosis meningitis. The main causes are chronically raised intracranial pressure (hydrocephalus and/or tuberculomas) or direct involvement of the optic chiasm or optic nerves by the basal arachnoiditis (inflammation and/or compression). Antituberculosis therapy combined with corticosteroids and control of intracranial pressure constitutes the ...
Miglio Laura - - 2010
A patient with ophthalmoplegic migraine is described, and his computed tomography and magnetic resonance imaging findings are discussed. According to our results, triad migraine, third nerve palsy, and focal enhancement of an enlarged third cranial nerve at the root exit zone should be considered pathognomonic of the disease, and further ...
Kefalidis Georgios - - 2010
OBJECTIVES/HYPOTHESIS: The pathogenetic mechanisms underlying Bell's palsy remain obscure, despite the extensive relevant research. Magnetic resonance imaging (MRI) studies have strongly indicated that facial nerve edema cannot be regarded as the sole etiologic factor, because it might persist long after full clinical recovery, or might be demonstrated in the clinically ...
Burrow T Andrew - - 2010
A 2-year-old girl with Pompe disease developed an acute worsening of muscle weakness during a hospitalization, and required intubation for an upper respiratory infection. Electromyography and nerve conduction studies produced results consistent with a severe chronic motor axonal peripheral polyneuropathy, with no evidence of reinnervation. Magnetic resonance imaging of the ...
Yamazaki Yuu - - 2010
The purpose of this study was to describe a trigeminal neuropathy caused by the perineural spread of an amyloidoma. A 62-year-old woman had an amyloidoma of the Gasserian ganglion that was hypointense on T2-weighted images; the lesion was enhanced by gadolinium on thin-slice magnetic resonance imaging. There was no evidence ...
Liu Shao-Cheng - - 2010
OBJECTIVE: To explore the vidian nerve anatomy by endoscopy and paranasal sinus computed tomography (CT) to elucidate the appropriate surgical approach based on preoperative CT images. DESIGN: Retrospective analysis. SETTING: Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China. PATIENTS: Sixty-seven patients underwent 106 endoscopic vidian neurectomies ...
Cerase Alfonso - - 2010
A 30-year-old woman developed acute visual loss and optic disc elevation in the left eye after breastfeeding her second son. The initial diagnosis was optic neuritis. However, MRI showed a lesion in left intraorbital and intracanalicular optic nerve and several cerebral lesions with imaging features of cerebral cavernous malformations (CCMs). ...
Ohno Tetsuro - - 2010
Meningeal carcinomatosis is the diffuse infiltration of the meninges by metastatic carcinoma. A 62-year-old man presented with a sudden onset of profound hearing loss affecting both ears. Brain magnetic resonance imaging showed increased signal intensity on T1-weighted images of both vestibulocochlear nerves. Upper gastrointestinal endoscopy revealed a large type 3 ...
Takahara Taro - - 2011
The aim of this study was to introduce and assess a new magnetic resonance (MR) technique for selective peripheral nerve imaging, called "subtraction of unidirectionally encoded images for suppression of heavily isotropic objects" (SUSHI). Six volunteers underwent diffusion-weighted MR neurography (DW-MRN) of the brachial plexus, and seven volunteers underwent DW-MRN ...
Nakata Seiichi - - 2010
CONCLUSION: Among patients with facial nerve paralysis, significant difference was observed on three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging (3D-FLAIR MRI) between those with and without audio-vestibular disturbance. This MRI technique may contribute to elucidation of the pathology of Ramsay Hunt syndrome and Bell's palsy. OBJECTIVE: To evaluate the 3D-FLAIR ...
Coelho L O M - - 2010
To demonstrate diagnostic imaging of an extremely rare presentation of bilateral narrow duplication of the internal auditory canal. An adolescent boy with profound sensorineural hearing loss presented for hearing rehabilitation. Imaging studies (i.e. multidetector computed tomography and magnetic resonance imaging) clearly demonstrated bilateral duplication of the internal auditory canals, with ...
Becker Minerva - - 2010
This article provides an overview of the imaging findings of diseases affecting the optic nerve with special emphasis on clinical-radiological correlation and on the latest technical developments in MR imaging and CT. The review deals with congenital malformations, tumors, toxic/nutritional and degenerative entities, inflammatory and infectious diseases, compressive neuropathy, vascular ...
Moonis G - - 2011
SUMMARY: An enlarged facial nerve canal can be a seen in both pathologic and nonpathologic processes. The purposes of this report are the following: 1) to present a rare cause of bony facial nerve canal enlargement, due to an enlarged vein, with high-resolution MDCT and histopathologic correlation; and 2) to ...
Dirim Berna - - 2010
Baxter's neuropathy is a nerve entrapment syndrome that results from the compression of the inferior calcaneal nerve. The causes of Baxter's neuropathy include altered foot biomechanics such as flatfoot, plantar calcaneal enthesophytes, and plantar fasciitis. Baxter's neuropathy and causative pathologies such as plantar fasciitis can be identified with the help ...
Hong Bo Young - - 2010
Several postpartum neurologic injuries have been described in detail, while obturator nerve injuries are rarely reported. We report a woman who had weakness of the right leg and groin pain after cesarean delivery under general anesthesia. Obturator neuropathy was confirmed by electromyography and no compressive lesion of the nerve was ...
Sakurai Keita - - 2010
The objective of the present study was to investigate clinical and magnetic resonance imaging (MRI) features of idiopathic trigeminal neuropathy with transient MR abnormalities mimicking a neoplasm (ITNmn). We retrospectively evaluated clinical and MRI features in two cases of ITNmn seen in our institution in comparison with those of previously ...
van Es Hendrik W - - 2010
Magnetic resonance imaging (MRI) of the brachial plexus is the imaging modality of first choice for depicting anatomy and pathology of the brachial plexus. The anatomy of the roots, trunks, divisions and cords is very well depicted due to the inherent contrast differences between the nerves and the surrounding fat. ...
Ferreira Teresa - - 2010
The ocular motor nerves (OMNs) comprise the oculomotor, trochlear and the abducens nerves. According to their course, they are divided into four or five anatomic segments: intra-axial, cisternal, cavernous and intra-orbital and, for the abducens nerve, an additional interdural segment. Magnetic resonance imaging is the imaging method of choice in ...
Giancipoli G - - 2010
A 15-year-old boy underwent neurological and ophthalmological evaluation. At birth, a severe bilateral microphthalmia, micropenis, and scrotal hypoplasia were diagnosed. Ophthalmologic examination showed right anophthalmia and severe left microphthalmia. Radiological examination showed normal orbital and skull structures. Magnetic resonance imaging (MRI), revealed the absence of the right eye, left microphthalmia, ...
Hong Samin - - 2010
A 73-year-old man presented with uveitic glaucoma associated with headache. Because there were no active inflammatory signs, synechiolysis and cataract extraction were performed. Even after lowering intraocular pressure, he repeatedly complained of headache, but no neuroimaging was performed. Acute bilateral visual loss was occurred 3 months after cataract surgery. Ophthalmologic ...
Han Hyun Jeong - - 2010
Vogt-Koyanagi-Harada (VKH) disease is a systemic disease consisting of bilateral granulomatous panuveitis combined with cutaneous and neurologic manifestations. However, there have been few reports of brain magnetic resonance imaging (MRI) in VKH disease. A 54-year-old Korean woman presented with severe periorbital pain, blurred vision and meningismus. Ophthalmologic examination disclosed bilateral ...
Sudhakar Padmaja - - 2010
A 21-year-old man who suffered a traumatic brain injury from a motor vehicle accident recovered brain function except for an isolated left fourth cranial nerve palsy. Brain CT showed a focal hemorrhage in the right dorsal midbrain, directly in the brainstem path of what would become the left fourth cranial ...
Park Wonse - - 2010
BACKGROUND: Paresthesia is a well-known complication of extraction of mandibular third molars (MTMs). The authors evaluated the relationship between paresthesia after MTM extraction and the cortical integrity of the inferior alveolar canal (IAC) by using computed tomography (CT). METHODS: The authors designed a retrospective cohort study involving participants considered, on ...
Petcharunpaisan Sasitorn - - 2010
Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is a rare disease that often presents with nonspecific white matter abnormalities on magnetic resonance imaging. Ptosis and ophthalmoparesis are a part of its clinical features. We report multiple cranial nerve contrast enhancement on magnetic resonance imaging in a patient with MNGIE and postulate that demyelination ...
Chhabra A - - 2010
MR imaging of peripheral nerves has been described in relation to abnormalities such as nerve injury, entrapment, and neoplasm. Neuroma formation is a known response to peripheral nerve injury, and here we correlate the MRN appearance of postinjury neuroma formation with intraoperative findings. We also present the MR imaging features ...
Du Rose - - 2010
OBJECT: Treatment of spinal and peripheral nerve lesions relies on localization of the pathology by the use of neurological examination, spinal MR imaging and electromyography (EMG)/nerve conduction studies (NCSs). Magnetic resonance neurography (MRN) is a novel imaging technique recently developed for direct imaging of spinal and peripheral nerves. In this ...
Kawabe Kiyokazu - - 2010
Posterior ischaemic neuropathy (PION) is characterized by infarction in the retrobulbar optic nerve. A 73-year-old man suddenly experienced blurred vision in his left eye and intermittent weakness in his right hand. He had visual defects of superior lateral quarter and inferior medial quarter areas in the left eye. Gadolinium-enhanced magnetic ...
Rajkomar Vikram - - 2010
A 60-year-old man presented to the accident and emergency department with a 4-day history of abdominal pain following blunt abdominal trauma. An initial CT scan showed thickened walls of the proximal jejunum and thromboses in the portal, splenic and superior mesenteric veins. He was given warfarin and the abdominal pain ...
1 2 3 4 5 6 7 8 9 10 >