A Dilated Pore of Winer in a Young Iberian Lynx <i>(Lynx pardinus)</i>

Abstract A 1.5-year-old male Iberian lynx born in captivity presented with a 2.2 cm exophytic nodular alopecic mass at the left tarsus medial aspect, before being released into wild. The lesion had keratinised material protruding through 1.2 pore, forming cutaneous horn. Histopathology revealed cystic dermo-epidermal lined by psoriasiform hyperplasia of epithelium, thicker base cyst, together abrupt to progressive keratinization and keratin pearls. central cavity was filled fibrillary ghost cells. Immunohistochemistry for pan-cytokeratin showed strong positive immunolabeling hyperplastic epithelium weaker content cyst. final diagnosis Dilated Pore Winer made. This paper is first reported case DPW wild felid.