Figure 2.

Histopathological abnormalities in the patient. A) Hematoxylin and eosin stain shows a mild fiber size variability and an overall reduced diameter. B) Gomori trichrome demonstrates nemaline rods. C) Some fibers exhibit small focal areas lacking succinate dehydrogenase staining. D) Electron micrograph shows subsarcolemmal rods in the vicinity of a myonucleus. View: ×10,000. E, F) Electron micrographs show that sarcomeric structure is preserved. View: ×3000 (E); ×10,000 (F). Scale bars = 50 μm (A); 10 μm (B); 20 μm (C).