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Washington University Experience | MUSCLE | Myopathies with Mitochondrial Pathology | 27A3 Muscle Bx (Case 27) EM017 - Copy

Ultrastructural examination shows myofibers with focally increased numbers of mitochondria. Further, there is occasional clustering, and notable variability in the size and shapes of mitochondria examined, including some enlarged forms and very abnormal shapes. The internal architecture of mitochondria; however, appears mostly unremarkable with the exception of the focal presence of coarse cristae. (electron micrograph)

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