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.

Multiple miliary multifocal lesions in the visceral pleura.

Multiple miliary multifocal lesions in the visceral pleura.

Image of the same lesion in the parietal pleura.

Image of the same lesion in the parietal pleura.