A 1.6-year-old male domestic short hair cat was brought to the Veterinary Medical Teaching Hospital, Kasetsart University, with signs of severe anemia, depression, and general lymph node enlargement. Complete blood count revealed leukocytosis and massive undifferentiated blasts. Testing for antibodies specific to feline leukemia virus (FeLV) was positive, and FeLV nucleic acid was confirmed by nested polymerase chain reaction. Base on cytochemistry and ultrastructure, the cat was diagnosed with acute monoblastic leukemia.
Animals ; Cat Diseases/*diagnosis/*virology ; Cats ; Leukemia Virus, Feline/*isolation & purification ; Leukemia, Monocytic, Acute/diagnosis/*veterinary/virology ; Male ; Osteoblasts/ultrastructure

Hematological, cytochemical and ultrastructural features of blood cells in fishing cat (Felis viverrina) were evaluated using complete blood cell counts with routine and cytochemical blood stains, and scanning and transmission electron microscopy. No statistically significant difference was found in different genders of this animal. Unique features of blood cells in this animal were identified in hematological, cytochemical and ultrastructural studies. This study contributes to broaden hematological resources in wildlife animals and provides a guideline for identification of blood cells in the fishing cat.
Animals ; Animals, Zoo ; Blood Cells/*cytology/ultrastructure ; Felis/*blood ; Female ; Histocytochemistry/veterinary ; Male ; Microscopy, Electron, Scanning/veterinary ; Microscopy, Electron, Transmission/veterinary ; Thailand