This report describes the successful treatment of a cutaneous
hemangiosarcoma of a 12 years old horse presented for evaluation of a
cutaneous mass on the left gluteal region. Hemangiosarcoma is a rare
life-threatening neoplasia that can be successfully managed when
diagnosed and treated at early stages. Unfortunately, they are often
diagnosed at later stages, leading to a poor outcome and low survival
rates. In this report, the horse has been treated with a complete large
surgical excision of the neoplastic tissue. A good cosmetic outcome as
well as a short recovery time has been achieved with an autologous skin
grafting split thickness modified meek technique. A long-term follow-up
of the patient showed no reoccurrence of the hemangiosarcoma, and
successful return to athletic performance. In the authors knowledge,
this is the first equine primary cutaneous hemangiosarcoma treated with
complete excision and subsequently autologous skin grafting with a
long-term follow-up and good outcome despite the poor prognosis.