Ovine pulmonary adenocarcinoma diagnosis and control in practice
نویسندگان
چکیده
منابع مشابه
Morphopathological study of naturally occurring ovine pulmonary adenocarcinoma in sheep in Fars province, Iran
Ovine pulmonary adenocarcinoma (OPA) is a contagious and transmissible lung cancer of sheepresembling human bronchiolo-alveolar carcinoma. In the present study, lungs of 9400 sheep slaughtered inFars province, Iran were examined morphopathologically. The OPA was diagnosed in the lungs of 21(0.22%) out of 9400 sheep. Frequency of involvement of different lobes in the affected lungs was includeda...
متن کاملHistopathological study of naturally occurring ovine pulmonary adenocarcinoma in native goat in Khuzestan, Iran
Sheep (ovine) pulmonary adenocarcinoma (SPA), also known as ovine pulmonary adneomatosis (OPA),jaagsiekte and ovine pulmonary carcinoma (OPC) is a contagious lung tumor in sheep and, more rarely, ingoats. This study was carried out in Khuzestan, in the southwest of Iran for a period of six months. A totalnumber of 3985 native breed goats were clinically inspected and postmortem examination was ...
متن کاملUltrastructural study of naturally occuring ovine pulmonary adenocarcinoma in Fars province, Iran
Ovine pulmonary adenocarcinoma (OPA) was studied in the lungs of 15 naturally-affected sheep (9 with classical and 6 atypical lesions) by transmission electron microscopy. Two lung samples from normal sheep were used to develop the ultrastructural criteria. Pathologic lesions consisted of focal-multifocal to coalescent nodules or masses in the cranioventral or diaphragmatic lobes. Ultrastructur...
متن کاملDiagnosis and prevalence of ovine pulmonary adenocarcinoma in lung tissues of naturally infected farm sheep.
AIM This study was aimed to detect ovine pulmonary adenocarcinoma (OPA) in sheep flocks affected with pulmonary disorders at organized farm. MATERIALS AND METHODS A total of 75 sheep died naturally were thoroughly examined for the lesions of OPA during necropsy. Tissue sections from affected portion of the lungs from each animal were collected aseptically and divided into two parts; one each ...
متن کاملIdentification of Atypic and Classic, Mucinous and Nonmucinous Forms of Ovine Pulmonary Adenocarcinoma (OPA) and TTF1 Marker Expression
BACKGROUND: Ovine pulmonary adenocarcinoma (OPA) is a worldwide contagious bronchioalveolar carcinoma caused by infection of a beta retrovirus in sheep and less in goat. Neoplastic proliferation of type II pneumocytes and clara cells, produce papillary to acinar tumoral pattern with infiltration of macrophages, lymphocytes and plasma cells and interstitial fibrosis tissue. OBJECTIVES: This stud...
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ژورنال
عنوان ژورنال: Livestock
سال: 2020
ISSN: 2053-0862,2053-0870
DOI: 10.12968/live.2020.25.4.191