Results 151 to 160 of about 2,367 (191)

Perfusion Abnormalities in Hemimegalencephaly

Neuropediatrics, 2009
Cerebrovascular changes are rarely discussed in patients with hemimegalencephaly. These alterations have previously been associated with epileptical activity.We report the case of a 36-week gestation neonate presenting with total right hemimegalencephaly, as demonstrated by a magnetic resonance imaging (MRI) performed in the first days of life ...
Wintermark, P., Roulet-Perez, E., Maeder-Ingvar, M., Moessinger , A. C., Gudinchet, F., Meuli, R.   +5 more
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Hemimegalencephaly and Neurofibromatosis

Neuropediatrics, 1990
Hemimegalencephaly, which previously has been associated with a poor clinical course characterized by intractable seizures and severe encephalopathy, was found without these conditions in two children with neurofibromatosis. These children showed relatively similar and favourable prognostic features: no presence of seizures before one month, seizures ...
Raffaella Cusmai, B Echenne
exaly   +3 more sources

Hemihypertrophy, Hemimegalencephaly, and Polydactyly

American Journal of Medical Genetics, Part A, 1996
We present clinical and neuropathological details of a patient with hemihypertrophy and hemimegalencephaly who may have Proteus syndrome. The observation of polysyndactyly in the case indicates either that polysyndactyly is a rare manifestation in Proteus syndrome, or that a separate condition, mimicking Proteus syndrome and pursuing a similar clinical
William Reardon, W Reardon, Robin M Winter   +2 more
exaly   +3 more sources

Hemimegalencephaly: Prenatal Diagnosis and Outcome

Fetal Diagnosis and Therapy, 2011
Hemimegalencephaly (HME) is a developmental abnormality of the central nervous system (CNS) which may present as either a syndromic or isolated case. Here, we present two cases of early prenatal diagnosis of HME. Prenatal CNS ultrasound and MRI in the first case revealed ventricular asymmetry, midline shift with displacement of the occipital lobe ...
Álvarez, R.M., García-Díaz, Lutgardo, Márquez, J., Fajardo, M., Rivas Infante, Eloy, García-Lozano, J. C., Antiñolo, Guillermo   +6 more
core   +5 more sources

MR Demonstration of Cerebral Hemimegalencephaly Associated With Cerebellar Involvement (Total Hemimegalencephaly)

Computerized Medical Imaging and Graphics, 1997
Hemimegalencephaly or unilateral megalencephaly is a rare malformation characterized by overdevelopment of all or part of one cerebral hemisphere. Although previous pathological studies noted an associated overdevelopment of the ipsilateral cerebellar ...
R N Sener
exaly   +2 more sources

Intractable Epilepsy in Hemimegalencephaly and Tuberous Sclerosis Complex

Journal of Child Neurology, 2007
Hemimegalencephaly is a rare brain malformation consisting of the enlargement of 1 hemisphere, often associated with abnormal cortical gyration, thick cortex, large neurons, and increased astrocytes.
Fabrizio Ferrari, Licia Lugli, Nicola Migone   +2 more
exaly   +2 more sources

Electroclinical characteristics of hemimegalencephaly

Pediatric Neurology, 1999
Presented here are two long-term follow-up patients with hemimegalencephaly. Patient 1 had Ohtahara's syndrome, which evolved into West's syndrome. Patient 2 had localization-related epilepsy, which demonstrated epilepsia partialis continua throughout the clinical course.
Y, Ohtsuka, S, Ohno, E, Oka
openaire   +2 more sources

ELECTROENCEPHALOGRAPHS ASPECTS OF HEMIMEGALENCEPHALY

Developmental Medicine & Child Neurology, 1989
SUMMARYThe authors retrospectively studied the electroencephalograms (EEGs) of 12 patients with hemimegalencephaly—a unilateral brain malformation which is often overlooked, despite having typical CT‐scan and MRI aspects. They were characterized by three types of abnormal tracing, which correlated with prognosis: triphasic complexes of large amplitude ...
F, Paladin, C, Chiron, O, Dulac, P, Plouin, G, Ponsot   +4 more
openaire   +2 more sources

Prenatal Diagnosis of Hemimegalencephaly

World Neurosurgery, 2014
In recent literature, there have been case reports of prenatal diagnosis of hemimegalencephaly, an extremely rare entity characterized by enlargement of all or portions of 1 cerebral hemisphere and intractable seizures. A unique case is presented of hemimegalencephaly of a fetus diagnosed in utero.A 27-year-old woman presented at 32 weeks' gestation ...
Shih-Shan, Lang, Ethan, Goldberg, Deborah, Zarnow, Mark P, Johnson, Phillip B, Storm, Gregory G, Heuer   +5 more
openaire   +2 more sources

Hemimegalencephaly - A Case for Hemispherectomy?

Neuropediatrics, 1985
Two infants are described with intractable, drug-resistant seizures from birth associated with an enlarged cerebral hemisphere. The first died at sixteen months and demonstrated arrested head growth. Histology of the abnormal hemisphere showed disturbed cortical architecture, and subcortical heterotopias with multinucleate cells resembling tuberous ...
M, King, J B, Stephenson, M, Ziervogel, D, Doyle, S, Galbraith   +4 more
openaire   +2 more sources