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Light microscopy showed a generalized lymphadenopathy with Perilymphadenitis, depletion of lymphocytes and histiocytosis of the lymph node. In histiocytes and vascular endothelial cells of lymph nodes, septal capillary endothelium of lungs and capillary endothelium of myocardium, early stages of a protozoan parasite were found. In the myocardium, there were many foci of necrosis, some of which contained young cysts in the periphery. These cysts were morphologically similar to those of Sarcocystis. Electron microscopy of the early protozoan stages yielded evidence of schizogony and formation of merozoites.<\/jats:p>","DOI":"10.1177\/030098587801500205","type":"journal-article","created":{"date-parts":[[2010,1,27]],"date-time":"2010-01-27T05:13:23Z","timestamp":1264569203000},"page":"186-195","source":"Crossref","is-referenced-by-count":4,"title":["A Sarcocystis-like Protozoon in a Sheep with Lymphadenopathy and Myocarditis"],"prefix":"10.1177","volume":"15","author":[{"given":"T.","family":"Landsverk","sequence":"first","affiliation":[{"name":"Department of Pathology, Veterinary College of Norway, Oslo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Gamlem","sequence":"additional","affiliation":[{"name":"Department of Pathology, Veterinary College of Norway, Oslo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Svenkerud","sequence":"additional","affiliation":[{"name":"Department of Pathology, Veterinary College of Norway, Oslo"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1978,3,1]]},"reference":[{"key":"bibr1-030098587801500205","doi-asserted-by":"publisher","DOI":"10.1093\/ajcp\/59.3.365"},{"key":"bibr2-030098587801500205","unstructured":"Cornelius C.E., Kaneko J.J.: Clinical Biochemistry of Domestic Animals, 1st ed., pp. 166\u2013171; 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