A 3-year-old neutered male domestic cat was presented with anorexia and weight loss. Clinical examination also revealed fever and pale mucosae. The blood smear showed an abnormal presence of both erythrocytic and leukocytic precursors in the circulation. The cat also tested positive for feline leukemia virus (FeLV). Due to the poor prognosis, the cat was euthanized and presented for autopsy. Bone marrow smears also revealed the presence of immature erythrocytic and leukocytic cells. This findings corresponded well with erythroleukemia, an uncommon form of leukemia.