Skeletal Muscle - Fibrosis - Gallery

Skeletal muscle - Fibrosis in a male Harlan Sprague-Dawley rat from a subchronic study. Early change consists of increased perimysial deposits of pale eosinophilic material (immature collagen).

Skeletal muscle - Fibrosis in a male Harlan Sprague-Dawley rat from a subchronic study. Note the perimysial proliferation of fibroblasts and early collagen deposition.