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  • Computed tomography  (1)
  • Mucopolysaccharidosis  (1)
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  • 1
    ISSN: 1279-8517
    Keywords: Cerebrum ; Lateralization ; Pediatrics ; Aphasia ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La latéralisation de la partie postérieure du lobe temporal et du lobe pariétal inférieur chez l'enfant a été étudiée en TDM sur 276 cas et comparée avec celle de l'adulte dans 371 cas. Les images TDM des ramifications médullaires de la substance blanche cérébrale furent analysées. Chez l'enfant en dessous de 5 ans d'âge, le planum temporale gauche est plus postérieur que le droit dans 56 % des cas; le droit est plus postérieur dans 21 %. L'asymétrie du gyrus temporal moyen est similaire à celle du planum temporal. La plicature (gyration) du lobule pariétal inférieur est massive et importante du côté gauche dans 63 % et dans 8 % du côté droit, chiffre à peu près identique à ceux de l'adulte. Le degré de visualisation du sillon intrapariétal est inférieur à celui de l'adulte mais la meilleure visualisation du côté gauche est un phénomène commun quel que soit l'âge incriminé. Ces altérations droitegauche semblent être le substrat morphologique des processus de localisation de la fonction auditive dans ces zones d'association.
    Notes: Summary Lateralization of the posterior temporal lobe and inferior parietal lobule in childhood was studied on CT of 276 cases and compared with those in adulthood of 371 cases. CT images were analized based on the morphological features of medullary branches of the cerebral white matter. In children below 5 years of age, the left planum temporale was already more posteriorly located than the right in 56%, while the right was more so in 21%. The asymmetry of the middle temporal gyrus was similar to those of the planum temporale. The folding of the inferior parietal lobule was extensive and intricate on the left side in 63% and on the right side in 8% of children, almost identical to those in the adult. The visualization rates of the intraparietal sulcus were lower compared to those of the adult, but the higher visualization of the left side was a common tendency regardless of age. These alterations in left-right asymmetry seemed to be a morphologic substratum indicating the processes of localization of auditory function to those association areas.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1920
    Keywords: Hunter's syndrome ; Mucopolysaccharidosis ; MRI ; CT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Neuroradiological findings in a 44-year-old male with the typical mild type of Hunter's disease are reported. Cranial MRI revealed patchy areas of increased and decreased signals in T1- and T2-weighted images in the thalamus and the basal ganglia giving rise to a honey comb-like appearance as a whole. The deep white matter showed high signals in the T2-weighted image. To our knowledge, the honey comb-like appearance has never been reported in this disorder. Deposition of mucopolysaccharides and/or glycolipids and increase in fluid content seem to be responsible for these changes.
    Type of Medium: Electronic Resource
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