{"id":5155,"date":"2013-05-01T14:49:59","date_gmt":"2013-05-01T13:49:59","guid":{"rendered":"https:\/\/sesc.cat\/cysticercus-in-pigs\/"},"modified":"2022-04-04T12:49:15","modified_gmt":"2022-04-04T11:49:15","slug":"cysticercus-in-pigs","status":"publish","type":"post","link":"https:\/\/sesc.cat\/en\/cysticercus-in-pigs\/","title":{"rendered":"Cysticercus in pigs"},"content":{"rendered":"

Recently an increased incidence of cysticercosis in some pig slaughterhouses has been noticed.<\/strong><\/p>\n

Cysticerci are the larval phase (metacestodes) of parasites known as tapeworms, which can be found in the intermediate hosts. The cases in which the pig may be an intermediate host are reviewed.<\/p>\n\n\n\n\n\n
Larval phase<\/b><\/td>\nParasite<\/b><\/td>\nDefinitive host<\/b><\/td>\nIntermediate host<\/b><\/td>\nSlaughterhouse findings<\/b><\/td>\nComments<\/b><\/td>\n<\/tr>\n
Cysticercus tenuicollis<\/i><\/b><\/td>\nTaenia hydatigena<\/i><\/td>\nDog (canids)<\/td>\nOvine, caprine and bovine.<\/p>\n

Porcine and equine.<\/td>\n

Transparent vesicles on the surface of the liver or other abdominal viscera<\/p>\n

The bladder evaginates in hot water and has a long neck with a single scolex with 4 suckers and a double crown of hooks. \u00a0Hemorrhagic migration routes can be observed in the liver parenchyma.<\/td>\n

Its incidence in pigs is associated with the presence of ovine and caprine herds.<\/td>\n<\/tr>\n
Cysticercus cellullosae<\/i><\/b><\/td>\nTaenia solium<\/i><\/td>\nHumans<\/td>\nPorcine<\/p>\n

Humans<\/td>\n

Vesicles can be found in the skeletal muscles \u00a0(masseters, tongue…) and myocardium.<\/td>\nIt is a ZOONOSIS*<\/strong><\/span>.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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*WARNING<\/strong>: This zoonosis has been\u00a0eradicated for years from\u00a0the Spanish territory, it is essential, if a case is suspected, to send samples for laboratory confirmation. When declaring the reason for condemnation\u00a0porcine cysticercosis (C.cellullosae<\/em>) should not be confused \u00a0with other non zoonotic parasites such C.tenuicollis<\/em>.<\/span><\/p>\n

The differential diagnosis of these lesions should also include: congenital serous cysts<\/a><\/strong>.<\/p>\n

\"Figure<\/a>

Figure 1: Examples of different cysts found in the abdominal cavity of pig carcasses, especially the liver (A and B) or adipose tissue (D). If viable when immersed in hot water the scolex may evaginate (C) a recording of this one can be seen in the video on Figure 3.<\/p><\/div>\n

\"Figure<\/a>

Figure 2: Observation of C.tenuicollis scolex at 100 magnification, 2 of the 4 suckers can be seen as well as the double crown of hooks.<\/p><\/div>\n