Table 4 Characterization of the different histological lesions observed in 665 lungs of pigs from commercial herds located in the state of Goiás, Brazil affected by Mycoplasma-like lung lesions at slaughter (2016/2017)

Histological features

Percentage of affected lung fragments

 Chronic bronchopneumonia^a

57.1% (380/665)

 Suppurative bronchopneumonia

15.6% (104/665)

 Granulomatous bronchopneumonia

0.3% (2/665)

 Fibrinous bronchopneumonia^a

0.2% (1/665)

 Subacute bronchopneumonia

0.3% (2/665)

 Catarrhal bronchopneumonia^a

1.1% (7/665)

 Chronic bronchiolitis^a

3.3% (22/665)

 Necrotic bronchiolitis^a

10.5% (07/665)

 Chronic pleuritis^a

13.1% (87/665)

 Fibrinous pleuritis

0.5% (3/665)

 Pulmonary abscess

0.1% (1/665)

 Interstitial pneumonia

3.6% (24/665)

 Bronchointerstitial pneumonia^a

4.5% (30/665)

 Granulomatous pneumonia

0.3% (2/665)

 Chronic pneumonia^a

0.3% (2/665)

Bronchial associated lymphoid tissue (BALT)

Percentage of affected lungs

 Absence of hyperplasia

36.2% (241/665)

 Mild hyperplasia

27.1% (115/424)

 Discrete hyperplasia

8.7% (37/424)

 Moderate hyperplasia

35.4% (150/424)

 Total

63.8% (424/665)