Fibrosarcoma in the saddle area in a dressage horse

Abstract

SummaryAn eight-year-old Hanoverian gelding was presented with a progressively growing mass in the left cranial region of the saddle area and a history of riding problems. A firm, poorly circumscribed, non-painful tissue was palpable. Diagnostic imaging revealed a calcified mass in the depth of the swelling. This calcified mass was excised out of the musculus longissimus thoracis under general anesthesia. Post surgery the horse developed a non-healing and intermittendly profusely bleeding wound. During the treatment of this non-healing wound tissue samples were sent to a laboratory for histopathological and immunohistochemical analysis. The analysis confirmed a fibrosarcoma. The horse was euthanized because of a very poor prognosis.

Treatment challenges in equine fibrosarcomas: Can the harmonic scalpel help in the treatment success?

“…unfavourable prognosis, the animal may be euthanased (Govaere et al, 2011;Harvey et al, 1987;Jorgensen et al, 1997;Koester et al, 2012).…”

“…The deeply located, large and rapidly growing tumours are more likely to be malignant (Villalobos, 2022). In view of the unfavourable prognosis, the animal may be euthanased (Govaere et al, 2011; Harvey et al, 1987; Jorgensen et al, 1997; Koester et al, 2012).…”

“…Metastasis of fibrosarcomas is rarely recorded in horses (Koester et al, 2012). The most common sites for metastasis of fibrosarcoma include the lung, liver, heart, mediastinum, humerus, kidney, intestines, skeletal muscle, lymph nodes and spleen (Govaere et al, 2011; Jorgensen et al, 1997; Reinerston, 1974).…”