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Summary A 50-year-old patient with suspected myopathy was examined. A biopsy of quadriceps was performed. Electronmicroscopy analysis revealed numerous droplets of fat within the muscle fibers and the presence of lipofuscin (Fig. 1,2). We observed altered structure of mitochondria, which were often characterized by light mitochondrial matrix and devoid of mitochondrial cristae (Fig 3,4,5). A defect of mitochondrial enzymes was suspected. Biochemical assesment of carnitine palmitoyltransferase is advisable.
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Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.