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Miwa Takako - - 2011
Objective Carpal tunnel syndrome (CTS) severity increases with age. Ultrasonographic measurement of the median nerve cross-sectional area (CSA) is an additional or complementary method for CTS diagnosis. The present study was aimed to investigate the diagnostic significance of median nerve CSA in various age groups of CTS patients. Methods The ...
Szabo Bianca - - 2011
Sarcoidosis is an inflammatory granulomatous disease affecting multiple organ systems. Neurosarcoidosis (central nervous system involvement) is seen in approximately 25% of patients with systemic sarcoidosis, although it is subclinical in most of these cases. Clinical presentations and imaging findings in nervous system were varied. Cranial nerve abnormalities were the most ...
Kawamoto Satomi - - 2011
Solid-pseudopapillary neoplasms of the pancreas are uncommon and usually occur in young women. They are generally large, encapsulated masses with mixture of solid, cystic, and hemorrhagic components. Some cases have atypical features; for example, they can form a small predominantly solid mass and produce dilatation of the main pancreatic duct. ...
Jia Yuxia - - 2011
We describe a case of schwannomatosis presenting as radicular pain and numbness in multiple radicular nerve distributions. There were multiple peripheral nerve tumors detected by magnetic resonance imaging (MRI) at the left vestibular nerve, cauda equina, right radial nerve, thoracic paraspinal nerve, and brachial plexi. Several resected tumors have features ...
Mittal Puneet - - 2011
Combined clinical presentation of hemifacial spasm and ipsilateral trigeminal neuralgia is also known as painful tic convulsif (PTC). It is a rare condition and the most common cause is vascular compression. Vertebrobasilar dolichoectasia (VBD) is characterized by dilated and tortuous vertebral and basilar arteries. VBD is an uncommon and rarely ...
Ginat Daniel T DT University of Rochester, Department of Imaging Science, Rochester, NY, - - 2011
Neurosarcoidosis is an uncommon condition with protean manifestations. Magnetic resonance imaging (MRI) is often used in the diagnostic evaluation and follow-up of patients with neurosarcoidosis. Therefore, familiarity with the variety of MRI appearances is important. In this pictorial essay, the range of possible patterns of involvement in neurosarcoidosis are depicted ...
D'Urso Pietro Ivo PI Neurosurgery Operative Unit, Department of Neuroscience, 'G Rummo' Hospital, Benevento, Italy. - - 2011
Intracranial schwannomas unrelated to the cranial nerves are uncommon. We report a new case of tentorial schwannoma unrelated to the cranial nerves, with extension into the pons. A literature review with discussion of the most relevant pathogenetic aspects is also performed. A 42-year-old Caucasian man was admitted with right-sided paresthesias ...
Saudek Frantisek - - 2010
In vitro labeling of pancreatic islets by iron nanoparticles enables their detection as hypoitnense spots on serial magnetic resonance (MR) images. We report the first results of a pilot trial aiming to test the feasibility and safety of this technique in humans. Islets were labeled in culture with 5 μL/mL ...
Zhou Jinyuan J Department of Radiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. - - 2011
It remains difficult to distinguish tumor recurrence from radiation necrosis after brain tumor therapy. Here we show that these lesions can be distinguished using the amide proton transfer (APT) magnetic resonance imaging (MRI) signals of endogenous cellular proteins and peptides as an imaging biomarker. When comparing two models of orthotopic ...
Mjåset Christer - - 2010
A 50-year-old woman had a gradual onset of chronic headache located in the right temporal region and a burning sensation in the root of the tongue which over a year evolved into chronic cluster headache with a milder chronic headache in-between the severe cluster headache attacks. A cerebral magnetic resonance ...
Yang Jun - - 2011
The mineralocorticoid receptor (MR) is a member of the nuclear receptor superfamily. Pathological activation of the MR causes cardiac fibrosis and heart failure, but clinical use of MR antagonists is limited by the renal side effect of hyperkalemia. The glucocorticoid cortisol binds the MR with equivalent affinity to that of ...
Steinborn M - - 2011
We performed a cadaver study to evaluate the accuracy of measurements of the optic nerve and the optic nerve sheath for high resolution US (HRUS) and magnetic resonance imaging (MRI). Five Thiel-fixated cadaver specimens of the optic nerve were examined with HRUS and MRI. Measurements of the optic nerve and ...
Kermarrec Erwan - - 2010
High-resolution ultrasound (US) and magnetic resonance (MR) imaging are the two imaging methods of choice for the study of peripheral nerves. The many advances that have been made in recent years, either by US or MR imaging, including diffusion tensor imaging and tractography, offer new perspectives for the assessment of ...
Beltran Luis S - - 2010
Clinicians frequently encounter compressive neuropathies of the lower extremity. The clinical history and physical examination, along with electrodiagnostic testing and imaging studies, lead to the correct diagnosis. The imaging characteristics of the compression neuropathies can include acute and chronic changes in the nerves and the muscles they innervate. We provide ...
Fernández-de-Las-Peñas César - - 2010
Case-control study with blinded examiner. To investigate if pressure pain sensitivity is related to specific nerve trunks in the upper extremity of patients with either unilateral lateral epicondylalgia (LE) or carpal tunnel syndrome (CTS). In the clinical setting, patients with LE tend to exhibit radial nerve trunk tenderness, whereas patients ...
Martinoli Carlo - - 2010
Ultrasound (US) and MR imaging have been shown able to detect in-depth features of brachial plexus anatomy and to localize pathological lesions in disorders where electrophysiology and physical findings are nonspecific or nonlocalizing. High-end gradient technology, phased array coils, and selection of an appropriate protocol of pulse sequences are the ...
Hébert-Blouin Marie-Noëlle - - 2010
Foot drop, the clinical manifestation of tibialis anterior (TA) muscle dysfunction, may be caused by pathologies involving selectively the TA motor nerve branches. Recently, in patients with fibular intraneural ganglion cysts, cystic involvement of the TA motor branch from the articular branch was demonstrated. However, no imaging characteristics of this ...
Tagliafico Alberto - - 2010
Traumatic injury to peripheral nerves is a significant cause of morbidity and disability. Until reinnervation occurs, electrodiagnostic studies cannot differentiate severe axonotmetic lesions (Sunderland class 4) from complete nerve transection or neurotmesis (Sunderland class 5). This limitation is relevant clinically because in cases of neurotmesis an improved outcome may be ...
Woertler Klaus - - 2010
The diagnosis of a peripheral nerve tumor can often be suggested on imaging. Direct continuity with a neural structure or location along a typical nerve distribution, shape, and intrinsic magnetic resonance (MR) signal characteristics represent the most important signs in this regard. Although several nonneoplastic nerve lesions can be specifically ...
Kim Si Hong - - 2010
In treating schwannoma patients, it is critical to determine the origin of the tumor to preserve nerve function. We evaluated the validity of preoperative imaging studies in distinguishing the neurological origin of the schwannomas of the head and neck, and the efficacy of intracapsular enucleation in preserving nerve function. In ...
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 ...
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