Acute myelomonocytic leukemia in a horse. 1986

S J Spier, and B R Madewell, and J G Zinkl, and A M Ryan

A 7-year-old Quarter Horse stallion with a myeloproliferative disorder was examined because of colic, and an enterolith was removed surgically. The horse experienced secondary complications after abdominal surgery, and leukopenia and thrombocytopenia were detected. Five months later, the horse was examined for recurrent peripheral edema and for repair of an abdominal incisional hernia. Acute myelomonocytic leukemia was diagnosed, and treatment with low-dose (noncytocidal) cytosine arabinoside was unsuccessful. Necropsy revealed neoplastic infiltrate in the spleen, liver, lung, adrenal gland, testes, and eye. The persistent hematologic abnormalities before the onset of overt leukemia may represent hematopoietic dysplasia or preleukemia.

UI MeSH Term Description Entries
D007951 Leukemia, Myeloid Form of leukemia characterized by an uncontrolled proliferation of the myeloid lineage and their precursors (MYELOID PROGENITOR CELLS) in the bone marrow and other sites. Granulocytic Leukemia,Leukemia, Granulocytic,Leukemia, Myelocytic,Leukemia, Myelogenous,Myelocytic Leukemia,Myelogenous Leukemia,Myeloid Leukemia,Leukemia, Monocytic, Chronic,Monocytic Leukemia, Chronic,Chronic Monocytic Leukemia,Chronic Monocytic Leukemias,Granulocytic Leukemias,Leukemia, Chronic Monocytic,Leukemias, Chronic Monocytic,Leukemias, Granulocytic,Leukemias, Myelocytic,Leukemias, Myelogenous,Leukemias, Myeloid,Monocytic Leukemias, Chronic,Myelocytic Leukemias,Myelogenous Leukemias,Myeloid Leukemias
D008297 Male Males
D006734 Horse Diseases Diseases of domestic and wild horses of the species Equus caballus. Equine Diseases,Disease, Equine,Disease, Horse,Diseases, Equine,Diseases, Horse,Equine Disease,Horse Disease
D006736 Horses Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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