title: Schwann cell proliferations mimicking medullated retinal nerve fibers.
abstract: Ophthalmoscopically visible white patches in the optic nerve head and adjacent retina in a rhesus monkey histologically represented peripheral rather than central nervous myelin. This case of Schwann cell proliferations appearing as medullated retinal nerve fibers raises questions concerning the relationship of this phenomenon to developmental and acquired lesions of the optic nerve head in man.
mesh_terms: D000818:Animals; D004285:Dogs; D000882:Haplorhini; D008253:Macaca mulatta; D009186:Myelin Sheath / Q000473:pathology*; D009898:Optic Disk / Q000473:pathology* / Q000648:ultrastructure; D009901:Optic Nerve Diseases / Q000473:pathology*; D012160:Retina / Q000473:pathology; D012583:Schwann Cells / Q000473:pathology*