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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)

From: Cross-sectional study of seropositivity, lung lesions and associated risk factors of the main pathogens of Porcine Respiratory Diseases Complex (PRDC) in Goiás, Brazil

Histological features Percentage of affected lung fragments
 Chronic bronchopneumoniaa 57.1% (380/665)
 Suppurative bronchopneumonia 15.6% (104/665)
 Granulomatous bronchopneumonia 0.3% (2/665)
 Fibrinous bronchopneumoniaa 0.2% (1/665)
 Subacute bronchopneumonia 0.3% (2/665)
 Catarrhal bronchopneumoniaa 1.1% (7/665)
 Chronic bronchiolitisa 3.3% (22/665)
 Necrotic bronchiolitisa 10.5% (07/665)
 Chronic pleuritisa 13.1% (87/665)
 Fibrinous pleuritis 0.5% (3/665)
 Pulmonary abscess 0.1% (1/665)
 Interstitial pneumonia 3.6% (24/665)
 Bronchointerstitial pneumoniaa 4.5% (30/665)
 Granulomatous pneumonia 0.3% (2/665)
 Chronic pneumoniaa 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)
  1. aSome lungs presented more than one type of histopathological finding but were classified according to the most extensive/predominant lesion