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Ultrastructural analysis of skeletal muscle. (a) Widespread myofibrillary abnormalities, abundant rod formation (arrows), granulofilamentous material, and filamentous profiles. A large autophagic vacuole containing myeloid structures and membranous debris. (b) Remnants of filaments, Z-disc material, and foci of mitochondria. Bar=0.2 μm.
