2012, Cilt 28, Sayı 4, Sayfa(lar) 237-239
Coligranuloma in a pigeon
Reza Kheirandish1, Mahmood Salehi2, Reza Ghanbarpour1, Soodeh Alidadi3, Nasrin Askari3
1Department of Pathobiology, School of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
2Department of Clinical Sciences, School of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
3Student of School of Veterinary Medicine School of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
Keywords: Coligranuloma, Escherichia coli, pigeon
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Coliganuloma is characterized by nodular granulomas in liver, mesentery and walls of intestine and is caused by Escherichia coli. This article describes gross and histopathological characteristics of coligranuloma in a pigeon. Grossly, there were observed multifocal nodular lesions on the serosal surface of the intestine, oviduct, pancreas, gizzard and liver. For the histopathological study, tissue samples from the affected organs were taken and stained. The affected organs were processed for the bacteriological examination. Escherichia coli was isolated from affected tissues. Histopathologically, there were found typical granulomas with caseation necrosis and bacterial colonies in central area surrounded by lymphocytes, macrophages, multinucleated giant cells and heterophils. Based on gross, histopathological and microbiological findings, coligranuloma was diagnosed. To the best of our knowledge, this is the first report of coligranuloma in pigeon.