Hyperplastic and hyperkeratotic dermatitis - Atlas of swine pathology
Hyperplastic and hyperkeratotic dermatitis
Where: skin and subcutaneous tissue
Possible causes: Mange
This lesion corresponds to hyperplastic and hyperkeratotic dermatitis. This is usually associated with sarcoptic mange (Sarcoptes scabiei). Lesions begin on the external ears, head, and neck and can become generalized. Early lesions consist of macules, papules, crusts and excoriations, while chronic lesions are scaly, lichenified and hairless. Differential diagnosis includes infection by Staphylococcus hyicus (exudative epidermitis) that usually affects piglets of 5-35 days of age.
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