Fig. 1From: Late-onset multiple acyl-CoA dehydrogenase deficiency mimicking myositis in an elderly patient: a case reportMuscle biopsy of the vastus lateralis muscle indicating lipid storage myopathy. Light microscopy of muscle biopsy showing muscle fibers containing cytoplasmic vacuoles under hematoxylin and eosin staining (a). Oil red O staining of vacuoles reveals lipid accumulation (b), which mainly appears in type 1 muscle fibers when stained with ATPase pH 4.4 (c)Back to article page