Chronic proliferative pleuritis in a sow
In a 24 months old crossbred sow multiple multifocal/miliary reddish lesions were seen of 2-4 mm in diameter, affecting both the visceral and parietal pleura.
Histopathological examination evidenced chronic proliferative pleuritis lesions with formation of microabscesses of bacterial etiology.
The microbiological culture has allowed to isolate and identify: Klebsiella oxytoca, Gemelli morbillorum, Enterobacter amnigenus, Serratia odorifera and Escherichia coli.
These bacteria are known to cause opportunistic infections and, thus, are probably secondary complications to a chronic process of which the actual etiology cannot be determined.