Bibliographic citations
Gonzales, C., (2003). Frecuencia y caracterización anátomo-hispatológica de las lesiones encontradas en bovinos con hematuria en Oxapamapa-Pasco [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/1566
Gonzales, C., Frecuencia y caracterización anátomo-hispatológica de las lesiones encontradas en bovinos con hematuria en Oxapamapa-Pasco [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2003. https://hdl.handle.net/20.500.12672/1566
@misc{renati/483092,
title = "Frecuencia y caracterización anátomo-hispatológica de las lesiones encontradas en bovinos con hematuria en Oxapamapa-Pasco",
author = "Gonzales Espinoza, Christian",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2003"
}
Anatomo-histopathologic study of urinary bladder, liver, kidney and spleen samples from 41 zebu and crossbreeding cattle with different lesions of a disease commonly named as “hematuria“ or Machicura´s intoxication in the Oxapampa province (Pasco) were done. Samples from 173 necropsied animals of abbatoir from the Municipality of this province in order to correlate Machicura´s intoxication with Bovine Enzootic Vesical Haematuria ( BEVH ), a world wide disease were obtained. It was found that the urinary bladder lesions were multifocal in 85.37% (35/41). The histopathologic diagnosis with Hematoxiline – Eosine (HE) stain, Hale´s histochemical stain for acid mucopolysaccharide and Masson trichromic for fibrous connective tissue with collagen or muscular was done. The most important microscopic lesions were proliferative polips ( 58.54% ); the circulatory process were hemorragia ( 68.29% ) and vascular proliferation or “angioblastic nests” ( 46.34% ); in the inflammatory process, the non suppurative cystitis ( 70.73% ) was the most important finding. On the other side, 68.30% were of neoplastic process and 41.70% of epithelial origen compared to 58.30% of non epithelial type. The epithelial type were composed of in situ carcinoma (26.83% ) and mucous papilomas ( 9.76 % ) the same as transitional cell carcinoma of Grade I; the non epithelial neoplastic type were distributed as follow: 34.45% by hemangiosarcoma, the most frecuent neoplasia, 24.39% by hemangioma and 14.63% by mixosarcoma. Finally, a racemous papiloma, squamous cell carcinoma, tubular carcinoma, rhabdomyosarcoma, leiomyosarcoma, hemangiopericytosarcoma, lymphoma and a lymphoid metastasis were observed in one opportunity. The conclusion was that the well known process of hematuria that occured in Oxapampa was the same as BEVH and the official report of this disease in our country based on anatomo-histopathologic study was done. The great variety of vesical lesions were the indicators of the marked alterations of the normal biological cell process that could be originated by one or various carcinogenic sustances as the ptaquiloside ( Pq ) which was isolated from the Pteridium aquilinum ( Pa ) a bracken fern presented in the studied region, but a lot of toxicologic studies need to be done.
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