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  • Title: Cystic leukoencephalopathy in a megalencephalic child: clinical and magnetic resonance imaging/magnetic resonance spectroscopy findings.
    Author: Mejaski-Bosnjak V, Besenski N, Brockmann K, Pouwels PJ, Frahm J, Hanefeld FA.
    Journal: Pediatr Neurol; 1997 May; 16(4):347-50. PubMed ID: 9258973.
    Abstract:
    A neurodegenerative disorder characterized by megalencephaly since early infancy and slowly progressive symptoms of cerebellar, pyramidal, and extrapyramidal dysfunction, pseudobulbar signs, and epilepsy was detected in an 8-year-old girl with severe neuromotor handicap but preservation of mental and sensory functions. Cranial computed tomography and magnetic resonance imaging revealed brain swelling as well as severe abnormalities of frontal, temporal, and parietal white matter, with an extended cystlike appearance isointense to cerebrospinal fluid. Localized proton magnetic resonance spectroscopy of affected cystic white matter showed a loss of all metabolites, in accordance with a complete disintegration of neuroaxonal and glial tissue. This case is likely a severe variant of a recently described megalencephalic leukoencephalopathy with swelling and discrepantly mild clinical course.
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