Summer Pasture–Associated Recurrent Airway Obstruction Basic Information Definition Seasonal, reversible, inflammatory condition of the lower airways characterized by airway obstruction from bronchoconstriction, mucus hypersecretion, neutrophilic exudation, and pathologic changes of…
Zygomycosis Basic Information Definition Deep, progressive, and rapidly invasive subcutaneous mycosis caused by fungi belonging to the class Zygomycetes (includes Entomophthorales and Mucorales) Synonym(s) Phycomycosis, entomophthoromycosis, conodiobolosis, rhinophycomycosis, basidiobolosis, mucormycosis…
Small Intestine Ascarid Impaction Basic Information Definition Heavy infestation of ascarids (Parascaris equorum) causing intraluminal obstruction of the small intestine during the intestinal phase of their life cycle Epidemiology Species,…
Hernia, Diaphragmatic Basic Information Definition Protrusion of an organ or tissue through a defect in the diaphragm Clinical Presentation Disease Forms/Subtypes • Etiology: May be congenital or acquired Congenital: Often…
Computed Tomography Dental Disease Basic Information Definition • Computed tomography (CT) images are cross sectional and depict variations in tissue density. • Problems of superimposition of the skull on the…
Failure to Cycle Basic Information Definition Failure to show estrous behavior when expected during the breeding season Synonyms • Noncycling mare • Anestrus Epidemiology Species, Age, Sex Sexually mature mares…
Squamous Cell Carcinoma Basic Information Definition Squamous cell carcinoma (SCC) is a malignant tumor of epithelial cell origin, specifically keratinocytes. SCC is the most common neoplasm of the equine eye…
Spermatic Cord Rotation and Torsion Basic Information Definition • Rotation describes twisting of the spermatic cord along the longitudinal axis, usually 180 degrees or less, and is generally an incidental…
Perineal Injury Basic Information Definition Traumatic wound(s) to the perineal and perianal area Synonyms • Perineal lacerations (first, second, and third degree) • Rectovestibular fistulas (rectovaginal fistulas) Epidemiology Species, Age,…
Multiple Organ Dysfunction Syndrome Basic Information Definition Multiple organ dysfunction syndrome (MODS) typically occurs because of unchecked systemic inflammation as seen in the systemic inflammatory response syndrome (SIRS) or sepsis….
