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Photomicrographs showing the olfactory mucosa autograft (original magnification, ×200). (A) Spinal cord mass (hematoxylin and eosin stain). Respiratory epithelium is visible with underlying submucosal connective tissue. In the epithelium, ciliated cells predominate, but some goblet cells are also present. There are nerve twigs and glands in the submucosa. (B) Gliotic spinal cord tissue (brown) adjacent to respiratory mucosal tissue (glial fibrillary acidic protein stain).
