Aberrant myelination of nerve fibers

Source horse, 20 year castrated male Appaloosa cross (UC Davis Clinic 512632, Ophthal 80028, Ophthalmic Pathology Teaching Set slide 151)
Fixative glutaraldehyde
Stain azure II-methylene blue
Notes the aberrant myelinated fibers (for this location in this species) have the thick, blue ring of tissue (the myelin sheath) around each whereas the non-myelinated (the usual condition) do not
See also clinical appearance
higher magnification
Legend integral to image
Illustration click on image to see larger picture