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5 days ago · A cyst-forming amoeba was isolated from freshly collected feces of a Ringed Salamander, Ambystoma annulatum. Trophic and cyst cells possessed a single nucleus with a large central nucleolus (Figure 1 and Figure S2). The nuclei of trophic cells were ringed with refractile granules. Amoebae moved with eruptive pseudopodia (Videos S1 and S2).
6 hours ago · Sertoli cell tumors are firmer, whiter on cross section, and do not tend to bulge. Leydig cell tumors are tan, may bulge on section, and often contain regions of hemorrhage. Histologically seminomas are composed of sheets of neoplastic germ cells that have enlarged nuclei and a single, prominent nucleolus (Figs. 8.50 and 8.51). Sertoli cell ...
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3 days ago · Giardia cyst is oval shaped, measures 11–14 µm in length and 7–10 µm in width. It contains four nuclei and remnants of axonemes, basal bodies and parabasal bodies It is the infective form as well as the diagnostic form of the parasite.
4 days ago · -the trophozoite is oval shaped w/one nucleus Cryptosporidium parvum - cause diarrhea - symptoms ( anorexia, nausea, vomiting and abdominal pain.-Extra-intestinal sites (liver, lung , gallbladder) Cyclospora - infects small intestinal mucosa -cause diarrhea -cyst with 5 nuclei inside it (nuclei are irregular and do not have the same size, unlike entameoba) Balantidium coli -ciliated -lives in ...
3 days ago · Pediatric high grade gliomas have undergone remarkable changes in recent time with discovery of new molecular pathways. They have been added separately in current WHO 2021 blue book. All the entities show characteristic morphology and immunohistochemistry. Methylation data correctly identifies these entities into particular group of clusters.
3 days ago · Escherichia coli ( / ˌɛʃəˈrɪkiə ˈkoʊlaɪ / ESH-ə-RIK-ee-ə KOH-ly) [1] [2] is a gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. [3] [4] Most E. coli strains are harmless, but some serotypes such as EPEC, and ETEC are ...
4 days ago · Dinophyta Dillon, 1963. The dinoflagellates ( Greek δῖνος dinos "whirling" and Latin flagellum "whip, scourge") are a monophyletic group of single-celled eukaryotes constituting the phylum Dinoflagellata [5] and are usually considered protists. Dinoflagellates are mostly marine plankton, but they also are common in freshwater habitats.
