Search Results
Results 801 - 850 of 892
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Fujii T - - 1990
Brain autopsy findings in a 14-year-old patient with mitochondrial myopathy, encephalopathy, lactic acidosis, and strokelike episodes were compared with those of computed tomography (CT) and magnetic resonance imaging (MRI). Pathologic examinations revealed extensive laminar necrosis bordered by gliotic tissues throughout the cerebral cortices. Moderate losses of myelin and fibrous gliosis ...
Albertyn L E - - 1990
Four patients with clinical and serologically proven Herpes Simplex Encephalitis (HSE) were examined by Magnetic Resonance Imaging (MRI) following Computed Tomographic (CT) scans. MRI proved more sensitive at detecting the temporal lobe abnormalities than CT and invariably showed the lesions to be more extensive than suspected. The findings were consistent ...
Enzmann D - - 1990
The CT findings in neonatal herpes simplex encephalitis (HSE) type II have been previously described, whereas magnetic resonance (MR) findings as yet have not. Early CT findings can be subtle and difficult to detect. However, as the abnormalities evolve, most notably the strikingly increased density of cortical gray matter, they ...
Roodhooft A M - - 1990
In a patient with methylmalonic acidaemia (MMAA), persistent neurological symptoms were observed in addition to the acute episodes of metabolic dysequilibrium. CT scan and magnetic resonance imaging revealed bilateral symmetrical necrosis of the globus pallidus. Different episodes of metabolic decompensation, one with severe acidosis, had occurred. Persistent neurological symptoms in ...
Medina L - - 1990
MR studies were correlated with biochemical results in nine children who presented with lactic acidosis and/or abnormal MR findings in the basal ganglia. Neurologic development was delayed in all nine children. Seven of these patients were diagnosed as having subacute necrotizing encephalomyelopathy (SNE, or Leigh syndrome) on the basis of ...
Balakrishnan J - - 1990
The appearance on magnetic resonance (MR) and computed tomographic (CT) images of specific central nervous system disorders associated with acquired immunodeficiency syndrome in 12 cases was correlated with autopsy findings. There were three cases of human immunodeficiency virus (HIV) encephalopathy; three, primary lymphoma; three, toxoplasmosis; one, cryptococcosis; one, cytomegalovirus infection; ...
Tuchman R F - - 1990
Magnetic Resonance (MR) Imaging of the brain in a child with carbon monoxide poisoning revealed bilateral diffuse high signal in the centrum semiovale and the previously unreported finding of bilateral high intensity lesions in the anterior thalami. This case illustrates a previously unrecognized effect of carbon monoxide poisoning and demonstrates ...
Anno Y - - 1990
A case of germinoma originating in the basal ganglia is presented. Preoperative MRI showed an area of a reticulated core of mixed signal intensity with a surrounding rim of low signal intensity in the right basal ganglia on T2-weighted image. This finding was reported to be characteristic of cavernous angioma, ...
Shoji H - - 1990
A follow-up study by CT and MRI in 3 cases of Japanese encephalitis (JE) was performed. Neurologically dementia, forced laughing, tetraplegia and parkinsonism were observed as sequelae. In the CT and MR scans about 3 years after the onset of JE, low-density areas (LDAs) or abnormal signal intensities had remained ...
Martin E - - 1990
This 6-year-old girl was admitted with insufficient involuntary breathing and generalized hypotonia. T2-weighted MR images showed bilateral symmetrical tubular hyperintense lesions in the medio-caudal part of the medulla oblongata that correlated well with demyelination and gliosis in the regions of the reticular formation and the nucleus solitarius found at autopsy. ...
Linné T - - 1990
The cerebral involvement of a 13-yr-old boy with Wilson's disease was serially evaluated during the first 18 mo of D-penicillamine treatment. An ultra-low-field magnetic resonance imaging (ULF MRI) system, operating at 0.02 T, with computerized image processing was used. The half-yr period prior to the clinical diagnosis was set, the ...
Vandenplas O - - 1990
A patient with eclampsia and severe but reversible neurological disorders is presented. Initial magnetic resonance imaging (MRI) revealed multiple hyperintense areas throughout the brain and brainstem that were consistent with ischemia and/or edema. Despite these diffuse lesions extending to the brainstem, the patient made a progressive neurological recovery and a ...
Ram Z - - 1989
Delayed nonhemorrhagic encephalopathy following mild head trauma is a rare condition with an unknown etiology. The few cases reported in the literature are in young adults, all of them in the era before computerized tomography (CT) became available, and all had a devastating clinical course with multifocal ischemia or necrotic ...
Donovan M K - - 1989
The diagnosis of postinfectious encephalomyelitis with symmetric lesions in the basal ganglia was confirmed by magnetic resonance imaging in 2 patients. A 7-year-old patient experienced severe dystonia and hyperreflexia; magnetic resonance imaging demonstrated bilateral lesions in the putamina and basis pontes. The other patient, a 2-year-old female, manifested hypotonia, facial ...
Wehn S M - - 1989
We present two patients with AIDS complicated by cryptococcal meningitis who displayed focal hypodense nonenhancing lesions in CT in the basal ganglia with corresponding areas of increased T2 and decreased T1 signal on magnetic resonance (MR). These lesions corresponded precisely to the distribution of the perforating arteries. Review of pathological ...
Baron R - - 1989
Marchiafava-Bignami disease (MBD) is a rare complication of chronic alcoholism. Most reported cases have been diagnosed at autopsy. With CT and, especially, MRI it is possible to diagnose MBD in its early stages. Lesions of CNS structures other than the typical demyelination of the corpus callosum are described ante mortem ...
Shoji H - - 1989
Neurological, computed tomography (CT) and magnetic resonance imaging (MRI) findings were recorded from 13 patients with Japanese encephalitis (JE) in the Kurume region diagnosed by serological criteria. The patients averaged 63 years of age, and 5 were older than 70 years. The serological data mostly indicated a primary response. Hemiplegia ...
Tison F - - 1989
A 56-year-old woman with coeliac disease developed myoclonus of cortical origin and palatal myoclonus with lesions of subcortical white matter on magnetic resonance imaging. Myoclonus can thus be a prominent feature of coeliac disease encephalopathy. A slight vitamin E deficiency was found but does not satisfactorily explain this myoclonic encephalopathy, ...
Taccone A - - 1989
Three cases of Leigh disease (subacute necrotizing encephalomyelopathy) have been investigated recently in our institute by CT. Bilateral, low attenuation areas were observed in the basal ganglia in all cases. These areas corresponded to the typical necrosis areas seen pathologically in this disease. In our study there were further interesting ...
Ellie E - - 1989
We report a father and son with striopallidodentate calcifications. Metabolic studies excluded calcium/phosphorus metabolism disturbances and no specific etiology was found. The structure of the calcified areas differed, on magnetic resonance imaging, depending on location and, probably, age. There are nine families with similar clinical and radiologic backgrounds and no ...
Wagle V G - - 1989
Encystment of the fourth ventricle, due to occlusion of the aqueduct as well as the foramina of Magendie and Luschka has been described previously. Partial sequestration such as that encountered in two cases described is a less common entity. In these two cases, the aqueduct of Sylvius was occluded, but ...
Curatolo P - - 1989
We report a 3-year-old child affected by severe encephalopathy, partial seizures with early onset and microgyria whom polymicrogyria was detected by means of magnetic resonance imaging (MRI). We believe that MRI first allow an early and confident in vivo diagnosis of this severe and probably not so rare condition.
Midgard R - - 1989
We present a case of symptomatic hemidystonia of delayed onset. The primary disease was a perinatal, presumed cerebrovascular infarction brought about by febrile illness with convulsions 12 weeks after partus. After many years without neurological symptoms, the hemidystonia started in adolescence, and became stationary after 4 years of mild progression. ...
Hauser R A - - 1988
Computed tomographic (CT) and magnetic resonance imaging (MRI) views of the brain were obtained in two adults and one child with hypertensive encephalopathy (HTE). Noncontrast CT was normal in one case and demonstrated decreased density posteriorly in two cases; MRI demonstrated focal, symmetric increased signal intensity in white matter and ...
Siejka S J - - 1988
Pseudohypoparathyroidism is an uncommon cause of movement disorders. We describe the case of an otherwise well 11-year-old girl, who presented with dystonia and was subsequently shown to have the classical metabolic abnormalities of pseudohypoparathyroidism. Cranial computerised tomographic scanning (CT scanning) showed intracerebral calcification of the basal ganglia and frontal lobes.
Kowal-Vern A - - 1988
We report a patient with herpes simplex virus encephalitis who presented with left hemiparesis and progressed to aphasia and generalized spasticity. Computerized axial brain tomography with and without infusion of contrast medium was normal, as were the cerebrospinal fluid findings. However, magnetic resonance imaging scan and brain biopsy, were diagnostic ...
Geyer C A - - 1988
Magnetic resonance (MR) imaging and CT were used in supporting the diagnosis of Leigh disease (subacute necrotizing encephalomyelopathy) in five patients. Two cases were confirmed at postmortem examination, and three patients have laboratory and/or clinical histories suggestive of Leigh disease. Four cases demonstrated findings in the basal ganglia, especially the ...
Taccone A - - 1988
Computed Tomography (CT) scans were obtained from nine infants with herpes simplex virus encephalitis (HSE). The early CT findings were generalized or localized edematous change and a mass effect was also seen in two cases. In the follow-up study two patients showed bilateral gyriform calcification, a rare occurrence in association ...
Ziegelbaum M M - - 1988
The association of neural crest tumors with myoclonic encephalopathy of infants has been well described. Since these tumors often are clinically occult the diagnostic modalities used to identify these lesions need to be sensitive. We describe a child with neuroblastoma associated with infantile myoclonic encephalopathy in whom magnetic resonance imaging ...
Verslegers W - - 1988
Following a cardiac arrest, a 21-year-old man developed a Parkinson syndrome. This was due to, as shown by brain computerized tomography (CT) and magnetic resonance imaging (MRI), symmetrical infarctions of the basal ganglia, especially the globi pallidi. The levels of homovanillic acid (HVA) in the CSF were lower than normal, ...
Schoeman J - - 1988
MR imaging was performed on 27 children with stage II-III tuberculous meningitis for the specific purpose of examining the brainstem, as well as comparison with other CT features of the disease. In addition to defining the ischemic disturbances of basal ganglia and diencephalon more clearly, MR also demonstrates the frequent ...
Salomon A - - 1987
Magnetic resonance images of 44 patients who had varying degrees of supratentorial signal abnormalities compatible with subcortical arteriosclerotic encephalopathy (SAE) were reviewed for posterior fossa findings. Brain stem lesions frequently accompanied supratentorial SAE and were seen as multiple, fairly symmetric areas of poorly defined, increased signal intensity on axial T2-weighted ...
DiMario F J FJ - - 1987
Central nervous system (CNS) complications of hemolytic-uremic syndrome (HUS) commonly consist of alterations in mental status, seizures, and rarely hemiparesis. The authors report the clinical evolution of left hemiparesis and later choreo-athetoid movements in a patient who sustained a right lacunar infarction as a complication of HUS. The infarction is ...
Fukunaga M - - 1987
It is well known that patients with pseudo (PHP)- and idiopathic (IHP) hypoparathyroidism are frequently associated with intracranial calcifications. The relative sensitivity of computed tomography (CT) and conventional skull radiography in detecting basal ganglia calcifications was studied in two patients with PHP and six with IHP. CT was more sensitive: ...
Neils E W - - 1987
The authors present two cases of herpes simplex encephalitis (HSE) in which computerized tomography (CT) scanning and magnetic resonance imaging (MRI) were performed. They also review the literature on the use of these imaging modalities in cases of HSE. The striking changes noted in these cases on T2-weighted magnetic resonance ...
Simpson R K RK - - 1987
A case of a young man who was a victim of strangulation is presented. He arrived at the hospital in refractory status epilepticus, controlled only with intravenous pentobarbital. The initial CT scan showed mild cortical edema. Two days later, a CT scan showed diffuse cortical swelling and bilateral basal ganglia ...
Rutledge J N - - 1987
Heavily T2-weighted high-field MR images provide a unique opportunity for the evaluation of the extrapyramidal motor system. The images are affected by the presence of small amounts of naturally occurring paramagnetic substances--principally iron--that delineate the neostriatum (caudate and putamen), globus pallidus, red nucleus, substantia nigra, and dentate nucleus, primarily by ...
Fross R D - - 1987
Two patients with acquired dystonia were studied by computed imaging techniques and found to have lesions predominantly involving the putamen. The implications of these findings are discussed, and it is concluded that, for the genesis of dystonia, a relative increase of other inputs to the pallidum may be important, such ...
Kissel J T - - 1987
Leigh's disease, or subacute necrotizing encephalomyelopathy (SNE), in adults is rare, and its diagnosis has depended on the postmortem identification of characteristic lesions in a typical distribution. We observed an autopsy-proved case of SNE in which the diagnosis was established by the distribution and evolution of lesions documented by serial ...
Starosta-Rubinstein S - - 1987
Thirty-one patients with Wilson's disease were evaluated with detailed neurologic and medical examinations. Mean age (+/- SD) at onset was 21 +/- 5 years and at examination was 28 +/- 6 years. Of the 90% of patients who were first treated with penicillamine, 31% deteriorated initially despite therapy, and half ...
Bianco F - - 1987
A computerized tomography (CT) scan was performed on 6 surviving patients with a suspected diagnosis of subacute necrotizing encephalomyelopathy of the juvenile and adult forms. Bilateral low density areas were observed in the putamina in all cases. This CT pattern conformed with the characteristic pathological changes of the disease. Once ...
Delgado G - - 1987
A 21 year old male, well-nourished and non-alcoholic, died after five weeks illness. He had suffered epileptic fits, bilateral internuclear ophthalmoplegia, bulbar and pontine paralysis, tetraparesia, ataxia and dystonia. A CT brain scan showed low density lesions of the striatum bilaterally. Post-mortem studies revealed pathological anomalies compatible with Leigh's disease, ...
Paltiel H J - - 1987
Leigh disease, or subacute necrotizing encephalomyelopathy (SNE), is a familial, degenerative disorder characterized by lesions of the gray and white matter in the brain and spinal cord. Low attenuation in the putamina on computed tomography (CT) scans is considered to be characteristic of the disease. The authors used CT to ...
Højer-Pedersen E - - 1987
Subcortical arteriosclerotic encephalopathy (SAE) (Binswanger's disease) was previously diagnosed almost exclusively at autopsy and considered to be very rare. Recent studies, however, indicate that an in vivo diagnosis might be made by means of computed tomography (CT) or nuclear magnetic resonance, resulting in a much more frequent recognition of this ...
Bianco F - - 1987
The CT pattern of bilateral and symmetrical round low density areas in the globi pallidi has been observed in a young man who attempted suicide by hanging. These CT abnormalities are similar to those described in other conditions such as carbon monoxide, hydrogen sulfide, cyanide and methanol poisoning, hypoglycaemia, drowning ...
Bernthal P - - 1987
Forty-nine nonalcoholic cirrhotic patients, on whom cranial CT scans were available, were administered a battery of neuropsychological tests. Although none of the subjects exhibited clinical signs or symptoms of hepatic encephalopathy, quantification of the CT scan image implicated cerebral edema and cortical atrophy. In addition numerous significant correlations were observed ...
Shen E Y - - 1986
Six of 83 asphyxiated neonates showed a diffuse increase of echodensity in bilateral thalami with or without other lesions in the basal ganglia on sonographic examination. The thalamic image still had a fairly high echogenecity compared with the surrounding brain parenchyma on follow up examination and was hence termed the ...
Inbody S - - 1986
We studied a 70-year-old woman with a unique combination of hyperkinesia and mutism. These findings differed from akinetic mutism because there was continuous bilateral ballism and dystonia--hence the term "hyperkinetic mutism." CT demonstrated bilateral calcifications in the basal ganglia, and MRI indicated bilateral watershed infarcts. Different dopaminergic mechanisms may underlie ...
Post M J - - 1986
The computed tomographic (CT) scans of 10 patients with acquired immunodeficiency syndrome who had central nervous system (CNS) involvement by cytomegalovirus (CMV) were retrospectively reviewed and correlated with clinical data and pathologic findings. Diagnosis was established in all 10 patients by autopsy, which showed the pathognomonic "owl's eye" intracellular inclusions ...
Koch T K - - 1986
Magnetic resonance imaging (MRI) offers a sensitive alternative to computed tomography (CT) for lesion localization. Patients with subacute necrotizing encephalomyelopathy (SNE) may be diagnosed by finding focal lesions on CT that correspond to sites of anatomical involvement. We report serial CT and MRI scanning findings in a patient with clinical, ...
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