File:Equine protozoal myeloencephalitis.jpg
Equine_protozoal_myeloencephalitis.jpg (329 × 336 pixels, file size: 151 KB, MIME type: image/jpeg)
Sarcocystis neurona stages and lesions.
(A). Cross section of spinal cord of horse with focal areas of discoloration (arrows) indicative of necrosis. Unstained.
(B). Section of spinal cord of a horse with severe EPM. Necrosis, and a heavily infected neuron (arrows), all dots (arrows) are merozoites. H and E stain .
(C). Higher magnification of a dendrite with numerous merozoites (arrows). One extracellular merozoite (arrowhead) and a young schizont (double arrowhead).
(D). Section of brain of an experimentally-infected mouse stained with anti-S. neurona antibodies. Note numerous merozoites (arrows).
(E). Immature schizonts in cell culture. A schizont with multilobed nucleus (arrow) and a schizont with differentiating merozoites (arrowheads). Giemsa stain.
(F). Mature sarcocysts with hairlike villar protrusions (double arrowheads) on the sarcocyst wall. H and E stain.
(G). Mature live sarcocyst with numerous septa (arrows) and hairlike protrusions on the sarcocyst wall (double arrowheads). Unstained.
(H). An oocyst with two sporocysts each with banana-shaped sporozoites. Unstained.
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current | 14:27, 21 December 2008 | 329 × 336 (151 KB) | Nabrown (talk | contribs) | Sarcocystis neurona stages and lesions. (A). Cross section of spinal cord of horse with focal areas of discoloration (arrows) indicative of necrosis. Unstained. (B). Section of spinal cord of a horse with severe EPM. Necrosis, and a heavily infected neu |
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