Proliferative peritoneal and pleural cestodiasis in a cat caused by metacestodes ofMesocestoidessp. anatomohistopathological findings and genetic identification

Abstract

Summary :A 10-year-old female cat was brought to Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana for post-mortem examination. The animal used to live, together with 26 other cats, in the big terrace of an apartment at the 8 th floor in Rome, and was always fed with industrial pet food. Anamnesis referred balance troubles, vomit and convulsions, during a couple of days, followed by sudden death. At necropsy, the cat presented mucoid rhinitis, purulent tracheitis, small areas of pneumonia, dark spots in the liver, catarrhal-hemorrhagic gastritis, fibrinous enteritis and meningeal hyperemia. Thoracic and abdominal cavities were completely invaded by hundreds of larval stages of cestodes. The same parasites were also included in nodules in pancreatic, lung and kidney parenchyma. Microscopic examination of parasites allowed their identification as larval stages (metacestodes) of cestodes of the genus Mesocestoides. The molecular genotyping of the metacestodes indicates a close relationship with members of the genus Mesocestoides, although a significant variation was found with respect to the available sequences of other species of the genus. Résumé : CESTODOSE PROLOFÉRANTE PLEURALE ET PÉRITONÉALE CHEZ UN CHAT, CAUSÉE PAR DES MÉTACESTODES (MESOCESTOIDES SP.). OBSERVATIONS ANATOMOHISTOPATHOLOGIQUES ET IDENTIFICATION GÉNÉTIQUE

A Case of Diffuse Peritoneal Larval Mesocestoides corti (syn. M. vogae) Cestodiasis in A Dog in Turkey

“…There are various case reports indicating that the disease caused by larval forms of cestodes belonging to the Mesocestoides genus in cats and dogs are characterized by non-specific signs like abdominal distension, loss of appetite, diarrhea, depression as we observed in the present case 4,5,11,[13][14][15][16][17][18] . Anemia and leucocytosis observed in the present case are in accordance with previous findings of Bonfanti et al 11 and Wirtherle et al 14 respectively.…”

Occurrence of Mesocestoides canislagopodis (Rudolphi, 1810) (Krabbe, 1865) in mammals and birds in Iceland and its molecular discrimination within the Mesocestoides species complex

“…In Europe, Yanchev (1986) reported seven Mesocestoides species; at present, 12 species are listed in the Fauna Europea database (www.faunaeur.org). Molecular tools have significantly helped to identify Mesocestoides species, both by using ordinal and generic markers such as the 28S (D1-D3), 18S, and the ITS2 of the ribosomal DNA, or more specific domains such as cytochrome c oxidase 1 (COI) and 12S of the mitochondrial DNA (Bowles and McManus 1994;Nakao et al 2000;Dinkel et al 2011;Eleni et al 2007;Hrčkova et al 2011;Littlewood et al 1999Littlewood et al , 2008Padgett et al 2013;Waeschenbach et al 2007;Jabbar et al 2012;Zalesny and Hildebrand 2012). Unfortunately, the use of these new tools has also led to submission of haplotypes without proper morphological characters for identifications (Foronda et al 2007;Padgett et al 2013).…”

Interactions between anomalous excretory and tegumental epithelia in aberrant Mesocestoides tetrathyridia from Apodemus sylvaticus in Spain

“…It is likely that Mesocestoides is widespread among A. sylvaticus throughout the Iberian Peninsula, but tetrathyridia were not found in a recent detailed survey of this host in the Coimbra District of Portugal (Eira et al 2006). Further surveys in this and other Mediterranean regions should pay special attention to determining the presence of this parasite, with particular attention to its occurrence in asexual forms, especially considering the recent occurrence of clinical cases of proliferative tetrathyridiosis in dogs and cats in Italy (Bonfanti et al 2004;Venco et al 2005;Eleni et al 2007). …”