Large coalescence lesions on the skin - Atlas of swine pathology
Where: skin and subcutaneous tissue
Possible causes: FrostbiteExudative EpidermitisSunburnPityriasis rosea
Pityriasis rosea is a sporadic condition seen in young pigs from 3 to 16 weeks of age. The cause is unknown but it is believed to be hereditary. Lesions heal in about four weeks without intervention. Pityriasis rosea does not require any treatment. The condition is not pruritic and seems to have no apparent effect on the health or growth rate of affected pigs.