Myonecrosis, Clostridial Basic Information Definition An acute, life-threatening disease of horses caused by infection of muscle with any of a variety of Clostridium spp. that elaborate dermonecrotizing and vasoactive toxins,…

Lupus Complex Basic Information Definition A multisystemic disease caused by the production of multiple autoantibodies, especially those directed against nucleic acids. It usually involves the skin and at least one…

Cerebrospinal Fluid Analysis Basic Information • Cerebrospinal fluid (CSF) is a clear, colorless fluid produced as an ultrafiltrate of plasma and is actively secreted by ependymal cells and the choroid…

Sinus Bradycardia Basic Information Definition A sinus rhythm with a heart rate of less than 24 beats/min Epidemiology Risk Factors High vagal tone Associated Conditions and Disorders Other arrhythmias associated…

Umbilical Infection in the Neonate Basic Information Definition Umbilical infection encompasses infection of the umbilical arteries and veins, urachus, and umbilical stump. Synonym(s) Navel ill Epidemiology Species, Age, Sex Most…

Shivers Basic Information Definition A mechanical lameness most often involving the pelvic limbs that appears to be caused by involuntary muscular spasms Synonym(s) Shivering, shiverer, shivers syndrome Epidemiology Species, Age,…

Perennial Ryegrass Staggers Basic Information Definition Mycotoxicosis associated with the ingestion of endophyte (Neotyphodium lolii)-infected perennial ryegrass (Lolium perenne) Synonym(S) Stagger syndrome Epidemiology Geography and Seasonality Perennial ryegrass is a…

Ulcers, Buccal and Lingual Basic Information Definition Ulcers found on the buccal aspect of the cheeks and lateral aspect of the tongue, typically associated with sharp enamel points of the…

White Snakeroot and Rayless Goldenrod Toxicosis Basic Information Definition White snakeroot (Ageratina altissima), and rayless goldenrod (Isocoma pluriflora), members of Asteraceae, contain similar toxins collectively referred to as tremetol. Synonym(s)…

Malocclusions, Dental Basic Information Definition Abnormal occlusal wear patterns involving the premolar and molar arcades Synonym(s) Hooks, ramps, waves, steps Epidemiology Risk Factors Age, dental trauma, orthodontic abnormalities, dental dysplasia…