Lymphocytes (Lymphocytosis, Lymphopenia)
Lymphocytes (Lymphocytosis, Lymphopenia) Basic Information Definition Lymphocytes consist of T cells, B cells, and natural killer cells. These cells are an integral part of the humoral and cell-mediated immune response….
Retained Fetal Membranes
Retained Fetal Membranes Basic Information Definition Failure to expel all or part of the fetal membranes within 3 hours of delivery of a foal Synonym(s) Retained placenta, retained afterbirth Epidemiology…
White Blood Cells
White Blood Cells Basic Information Definition White blood cells consist of granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes. Occasionally, mast cells can be observed in the tissue and the…
Inflammatory Airway Disease
Inflammatory Airway Disease Basic Information Definition • Inflammatory airway disease (IAD) is a respiratory disease of adult horses that is characterized by noninfectious inflammation of the small airways accompanied by…
Microcytosis
Microcytosis Basic Information Definition Microcytosis refers to the presence in the blood of significant numbers of erythrocytes that are smaller than normal (microcytes), often resulting in a decrease in the…
Sinusitis, Primary
Sinusitis, Primary Basic Information Definition An inflammatory process of the paranasal sinus system caused by bacterial upper respiratory tract infection Epidemiology Species, Age, Sex Primary sinusitis can affect horses of…
Keratocytes
Keratocytes Basic Information Definition Keratocytes are erythrocytes with one or two projections that may form as a result of rupture of a vacuole or hole within an erythrocyte. Their mechanism…
Schistocytes
Schistocytes Basic Information Definition Schistocytes are fragmented erythrocytes. They are irregular in shape and smaller than normal erythrocytes on blood smears. Synonym(s) Schizocytes Red blood cell fragments