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  • Title: [Mitochondrial encephalomyopathy: clinical aspects, CT morphology and neuropathology].
    Author: Wessel K, Poremba M, Pfeiffer J, Roggendorf W.
    Journal: Fortschr Neurol Psychiatr; 1988 May; 56(5):154-62. PubMed ID: 3397029.
    Abstract:
    Basing on the example of two cases, the clinical and morphological variability of mitochondrial encephalomyopathies is demonstrated. Both patients were of short build, and the clinical signs and symptoms were dementia, ataxia, epilepsy and hardness of hearing, whereas signs of myopathy were very mild or absent. Computed tomography showed infratentorial pronounced atrophy of the brain and basal ganglia calcifications, in one case additionally ischemic infarctions, as can be seen in "mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes syndrome" (MELAS). A CT follow-up over 8 years with a progression of the abnormalities parallel to the progressive clinical course is demonstrated. Besides typical "ragged red fibres-myopathy" different abnormalities of mitochondria were seen by the electron microscope. One of the patients died; he had exceptional pathological-anatomical findings with mitochondrial cardiomyopathy, angioma and necrotising encephalopathy of Leigh's type. The two case reports show that in patients with such multisystemic neurological signs and CT-findings mitochondrial encephalomyopathy should be considered and a muscle biopsy should be performed.
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