Changes

*Also called '''mycoplasmal pneumonia'''

*Also called '''mycoplasmal pneumonia'''

*Major cause of unthriftiness in young pigs

*Major cause of unthriftiness in young pigs

*[[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|Pneumonia]] in weaned pigs

*[[Pneumonia Overview#Infectious causes of pneumonia|Pneumonia]] in weaned pigs

*Cough, reduced growth rate

*Cough, reduced growth rate

*Attached to cilia - no [[Respiratory System General Introduction - Pathology#Mucociliary escalator|mucociliary clearance]]

*Attached to cilia - no [[Respiratory System General Introduction - Pathology#Mucociliary escalator|mucociliary clearance]]

**In other areas there may be small red to grey focal lesions evident which indicate the bronchiolar orientation of the inflammatory process

**In other areas there may be small red to grey focal lesions evident which indicate the bronchiolar orientation of the inflammatory process

*Histologically

*Histologically

**Changes result from a catarrhal [[Lungs Inflammatory - Pathology#Bronchointerstitial pneumonia|bronchointerstitial pneumonia]]  

**Changes result from a catarrhal [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]]  

**In chronic cases, prominent accumulations of lymphoid cells can be seen around airways and blood vessels

**In chronic cases, prominent accumulations of lymphoid cells can be seen around airways and blood vessels