The abnormal fiber that is seen with Gomori trichrome staining is typical of: <image 1>
['Hypoxia', 'A mitochondrial disorder', 'Polymyositis', 'Nemaline myopathy']
The picture indicates a ragged red fiber that has a reddish appearance with the Gomori trichrome stain. The reddish material corresponds to abnormal aggregates of mitochondria. These findings are not specific for a particular disorder, but are most characteristic of a mitochondrial disorder. Hypoxic changes are not common in muscle. Most likely infarction would occur. Polymyositis causes inflammatory myopathy, and Nemaline rods stain dark and are thread-like with this stain.