He had a rapid heart rate. Blood was drawn for a complete profile, and intravenous catheter was placed and intravenous fluids and antibiotics were started. Thoracic and abdominal radiographs were taken. The abdominal films revealed the presence of mass in the area of the spleen. It was suspected that Duke had a tumor of the spleen.
Some splenic tumors pool large quantities of blood, causing anemia.
Surgery would have been the only treatment option. A few weeks later, Duke was brought in for euthanasia.