ACUTE MYELOGENOUS LEUKEMIA IN A MARE

A 5-year-old Thoroughbred mare presented with a 4 week history of weig ht loss, fever and leukopenia. Rectally, a large active foerus, thicke ned spleen and an abdominal mass were palpated. Leukopenia, mild anaem ia, marked thrombocytopenia and hyperfibrinogenaemia were found. Cytol ogy and cytochemical staining of a bone marrow aspirate supported a di agnosis of acute myelogenous leukaemia. The mare deteriorated despite medical therapy and was humanely euthanased.