Risberg A I, Webb C B, Cooley A J, Peek S F, Darien B J
Department of Medical Sciences, University of Wisconsin, School of Veterinary Medicine, 2015 Linden Drive, Madison 53706-1102, USA.
Vet Rec. 2005 Jun 4;156(23):740-3. doi: 10.1136/vr.156.23.740.
A pregnant quarterhorse mare became acutely lame as a result of severe swelling of its right hind leg, thought to have been caused by a fracture or a muscle tear. Diagnostic procedures ruled out a traumatic musculoskeletal cause and a physical examination revealed chronic pastern dermatitis ('scratches'/'grease heel'). Histopathological evaluation of biopsy samples from the right hind leg was consistent with a leucocytoclastic vasculitis, and culture yielded Staphylococcus intermedius. The treatment and infectious causes of pastern dermatitis are discussed.