Neoplasmas em suínos: 37 casos

Brum, Juliana Sperotto; Martins, Tessie Beck; Vielmo, Andréia; Hammerschmitt, Márcia Elisa; Talini, Rafaela; Minozzo, Carolina Dutra; Barros, Claudio S.L.

doi:10.1590/s0100-736x2015000600009

Cited by 7 publications

(12 citation statements)

References 33 publications

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“…In histological sections no mites were observed, however it does not mean that any of these cases cannot be sarcoptic mange, as the agent may not be detected in histology (Brewer & Greve 2019). Neoplastic skin diseases represented a low number of diagnoses (1.3%), which was expected, since neoplasms in pigs are rare (Brum et al 2015, Torrison & Cameron 2019. Papilloma occurred in a slaughter pig, with no information on the anatomical location, but it can affect growing pigs, especially around the neck, along the back and in the ears (Torrison & Cameron 2019).…”

Section: Discussionmentioning

confidence: 94%

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Primary skin diseases and cutaneous manifestations of systemic diseases in swine

et al. 2020

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Skin diseases in pigs can negatively impact the production. They cause losses related to the death of the affected pigs, to the cost with the treatment, growth retardation and condemnations in the slaughterhouses. This study was developed to determine the frequency and describe the histopathological findings of skin diseases in pigs in different age groups through a retrospective study from 2006 to 2018. A total of 154 conclusive cases were analyzed, including skin restricted diseases (allergic dermatitis, exudative epidermitis, vesicular dermatitis, pityriasis rosea, swinepox, follicular cyst, papilloma and scrotal hemangioma) or skin lesions secondary to systemic diseases (erysipelas, porcine dermatitis and nephropathy syndrome (PDNS), bacterial septicemia and multiple hemorrhages without definite cause). The skin lesions were classified as bacterial (46.1%), viral (26.6%), allergic (12.3%), neoplastic (1.3%) and others (13.6%). Swine erysipelas was the most frequent diagnosis (47/154), followed by PDNS (23/154), allergic dermatitis (19/154) and exudative epidermitis (15/154). Vesicular dermatitis (9/154), pityriasis rosea (9/154), septicemia with cutaneous manifestations (9/154), swinepox (9/154) and multiple hemorrhages without definite cause (7/154) were also observed. Follicular cyst (3/154), hyperkeratosis without definite cause (2/154), papilloma (1/154), and scrotal hemangioma (1/154) were less frequently described. Of the conclusive diagnosis, age was reported in 138 cases, with the highest frequency of skin lesions observed at the inspection process during slaughter (56/138).

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Section: Discussionmentioning

confidence: 94%

“…Papilloma and scrotal hemangioma represented 0.6% each of the total skin lesions diagnosed. Brum et al (2015), in a study on swine neoplasms, diagnosed 2/37 (5.4%) cases of papilloma.…”

Section: Discussionmentioning

confidence: 98%

Primary skin diseases and cutaneous manifestations of systemic diseases in swine

et al. 2020

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“…Nephroblastomas are poorly described in free-living tamarins in South America. In Brazil, these neoplasms are highly prevalent in pigs and poultry during slaughter (Brum et al 2015, Serakides & Silva 2017. The primary renal tumors most commonly described in NHP are adenomas and carcinomas; nephroblastomas are rarely described (Jones & Casey 1981, Zoller et al 2008.…”

Section: Discussionmentioning

confidence: 99%

Nephroblastoma in a black-tufted marmoset (Callithrix penicillata)

et al. 2018

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A renal nephroblastoma is described in a free-living black-tufted marmoset (Callithrix penicillata) in Central Brazil. The monkey was found dead and subjected to necropsy. Gross anatomic changes consisted of a ruptured left kidney, which was almost completely effaced by a white to yellow, partially encapsulated friable mass. The left ureter was distended due to obstruction by a red, spherical, 2mm in diameter friable mass. The urinary bladder was also distended. Histologically the renal and ureteral masses consisted of a triphasic embryonal neoplasm composed of embryonic epithelium forming glomeruli and tubules, polygonal blastemal cells, and a mesenchymal stroma. The embryonic epithelium exhibited rare nuclear immunoreactivity for WT-1, whereas blastemal cells exhibited robust cytoplasmic and rare nuclear immunoreactivity for WT-1; blastemal cells were also immunoreactive for vimentin. No immunoreactivity was detected for pan-cytokeratin (AE1/AE3), actin, and desmin. Morphological and immunohistochemical features of the present neoplasm are consistent with those described for renal nephroblastoma.

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“…In domestic pigs, squamous cell papillomas and carcinomas have been reported to occur rarely in white skinned strains. 105 –107 Melanomas have been described in darkly colored pigs such as Duroc and Hampshire breeds. 108 There are certain specific minipig strains, namely Sinclair, 109 MeLiM (Melanoma-bearing Libechov Minipigs) also known as Libechov strains 110 and Munchener Miniaturschwein (Troll) minipig strains 111 that frequently develop regressing cutaneous melanomas at a very young age.…”

Section: Chapter 8 Integumentary Systemmentioning

confidence: 99%

International Harmonization of Nomenclature and Diagnostic Criteria (INHAND): Nonproliferative and Proliferative Lesions of the Minipig

et al. 2021

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The INHAND (International Harmonization of Nomenclature and Diagnostic Criteria for Lesions) Project ( www.toxpath.org/inhand.asp ) is a joint initiative of the Societies of Toxicologic Pathology from Europe (ESTP), Great Britain (BSTP), Japan (JSTP), and North America (STP) to develop an internationally accepted nomenclature for proliferative and nonproliferative lesions in laboratory animals. The purpose of this publication is to provide a standardized nomenclature for classifying microscopic lesions observed in most tissues and organs from the minipig used in nonclinical safety studies. Some of the lesions are illustrated by color photomicrographs. The standardized nomenclature presented in this document is also available electronically on the internet ( http://www.goreni.org/ ). Sources of material included histopathology databases from government, academia, and industrial laboratories throughout the world. Content includes spontaneous lesions as well as lesions induced by exposure to test materials. Relevant infectious and parasitic lesions are included as well. A widely accepted and utilized international harmonization of nomenclature for lesions in laboratory animals will provide a common language among regulatory and scientific research organizations in different countries and increase and enrich international exchanges of information among toxicologists and pathologists.

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Neoplasmas em suínos: 37 casos

Cited by 7 publications

References 33 publications

Primary skin diseases and cutaneous manifestations of systemic diseases in swine

Primary skin diseases and cutaneous manifestations of systemic diseases in swine

Nephroblastoma in a black-tufted marmoset (Callithrix penicillata)

International Harmonization of Nomenclature and Diagnostic Criteria (INHAND): Nonproliferative and Proliferative Lesions of the Minipig

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