Ring-shaped coalescent skin lesions - Atlas of swine pathology
Where: skin and subcutaneous tissue
Possible causes: Exudative EpidermitisPityriasis roseaOther
The large coalescing ringworm like lesions located in the abdomen and the fore and hind legs are compatible with Pityriasis rosea. This is a sporadic condition seen in young pigs from 3 to 16 weeks of age. It is believed to have a hereditary background.