{"id":550,"date":"2018-08-07T20:59:27","date_gmt":"2018-08-07T20:59:27","guid":{"rendered":"http:\/\/fishhistopathology.com\/?p=550"},"modified":"2020-02-14T12:42:22","modified_gmt":"2020-02-14T15:42:22","slug":"freshwater-amebiasis-histopathology","status":"publish","type":"post","link":"https:\/\/fishhistopathology.com\/?p=550","title":{"rendered":"Freshwater Amoebiasis – Histopathology"},"content":{"rendered":"\n

Fish affected with branchial amoebiasis, have marked epithelial fusion and hyperplasia, leading often to loss of normal gill architecture, with obliteration of interlamellar spaces. Several species are involved, some of which invade the lamellar epithelium. <\/p>\n\n\n\n

\"O.<\/a>
Figure 1. Rainbow trout, gill, H&E; severe lamellar hyperplasia<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Trophozoites can therefore be seen in small groups within the branchial epithelium as well as on the surface.<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"Rainbow<\/a>
Figure 2. Rainbow trout, gill, H&E; severe lamellar hyperplasia.<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n















Several diagnostic methods can be used for the detection of amoebae, including whole mounts of fresh gills, histopathology, isolation and culture, in situ<\/em> hybridization (ISH), electron microscopy and indirect immunofluorescence.<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"O.<\/a>
Figure 3. Rainbow trout, gill, H&E; severe lamellar hyperplasia.<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n

Differential diagnoses include bacterial gill disease (BGD), flavobacteriosis and mycosis.<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"Freshwater<\/a>
Figure 4. Rainbow trout, gill, trophozoites are observed on lamellar surface, H&E.<\/strong><\/figcaption><\/figure><\/div>\n\n\n\n
















REFERENCES<\/strong><\/p>\n\n\n\n

  • Nash, G., Nash, M., & Schlotfeldt, H. J. (1988). Systemic amoebiasis in cultured European catfish, Silurus glanis L.\u00a0Journal of Fish Diseases<\/em>,\u00a011<\/em>(1), 57-71. <\/li>
  • Sawyer, T. K., Hnath, J. G., & Conrad, J. F. (1974). Thecamoeba hoffmani sp. n.(Amoebida: Thecamoebidae) from gills of fingerling salmonid fish.\u00a0The Journal of parasitology<\/em>, 677-682. <\/li>
  • Daoust, P. Y., & Ferguson, H. W. (1985). Nodular gill disease: a unique form of proliferative gill disease in rainbow trout, Salmo gairdneri Richardson.\u00a0Journal of Fish Diseases<\/em>,\u00a08<\/em>(6), 511-522. <\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"

    Fish affected with branchial amoebiasis, have marked epithelial fusion and hyperplasia, leading often to loss of normal gill architecture, with obliteration of interlamellar spaces. Several species are involved, some of which invade the lamellar epithelium. Trophozoites can therefore be seen in small groups within the branchial epithelium as well as on the surface. Several diagnostic methods can be used for the detection of amoebae, including whole mounts of fresh gills, histopathology, isolation and culture, in situ hybridization (ISH), electron microscopy and indirect immunofluorescence. Differential diagnoses...","protected":false},"author":3,"featured_media":905,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[14,15,27],"class_list":["post-550","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gills-and-pseudobranchs","tag-epithelial-hyperplasia","tag-epithelial-proliferation","tag-lamelar-fusion"],"_links":{"self":[{"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/posts\/550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=550"}],"version-history":[{"count":4,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/posts\/550\/revisions"}],"predecessor-version":[{"id":2240,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/posts\/550\/revisions\/2240"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=\/wp\/v2\/media\/905"}],"wp:attachment":[{"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fishhistopathology.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}