Intussusception of the proventriculus in chicks
2008
Ikezawa, M.(Iwate Univ., Morioka (Japan)) | Goryo, M. | Sasaki, J. | Okada, K.
In January 2005, intussusception of proventriculus was diagnosed in four chicks from a layer farm from a batch of 24,000 chicks of foreign origin. At autopsy, the proventriculus was invaginated into the gizzard and the esophagus was infused with petechial hemorrhages and covered with a cheesy material. Histopathologically, there were almost no abnormal findings in the medial portion of the invaginate lesion. Degeneration and necrosis of mucosal folds and infiltration of inflammatory cells were observed in mucosa of the lateral portion of the invaginate lesion. On the mucosal surface, there was a pseudomembrane with bacterial clumps. We histologically diagnosed this lesion as pseudomembranous proventriculitis. For other organs, slight atrophy was observed in the thymic cortex.
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