Choanal Atresia Basic Information Definition Choanal atresia is a congenital abnormality resulting in unilateral or bilateral obstruction of the choanae. Choanal atresia is caused by failure of the bucconasal membrane…

Cleft Palate Basic Information Definition A congenital defect resulting in the partial or complete failure of closure of the palatal folds in early embryologic development Synonym(s) Palatoschisis Epidemiology Risk Factors…

Clover Toxicosis Basic Information Definition Clover toxicity is caused by ingestion of alsike clover (Trifolium hybridum) or red clover (Trifolium pratense), resulting in signs of photosensitivity and liver failure. Synonym(s)…

Cecal Volvulus Basic Information Definition Rotation of the cecum around the mesenteric axis (which is also the long axis of the cecum) Synonym(s) Cecal torsion Epidemiology Associated Conditions and Disorders…

Bronchopneumonia, Bacterial Basic Information Definition Bacterial infection and inflammation of the airways, lung parenchyma, or both Epidemiology Genetics and Breed Predisposition • There is no genetic or breed predisposition, except…

Cecum Nonstrangulating Infarction Basic Information Definition Loss of blood supply to the cecum not associated with strangulation Epidemiology Risk Factors High parasite load and inappropriate deworming programs may predispose to…

Bufo Toad Toxicosis Basic Information Definition Exposure to Bufo spp. toads may result in the acute onset of severe cardiovascular and neurologic signs. Synonym(s) Cane, giant, or marine toad (Bufo…

Branchial Cysts Basic Information Definition Branchial cysts are congenital epithelial cysts that arise as malformations of the branchial arches during embryogenesis. They are uncommon, but when they are present, they…

Botulism Basic Information Definition A neuromuscular disorder of horses and other mammals caused by neurotoxins of Clostridium botulinum. Toxicoinfectious botulism occurs through oral ingestion of botulism and elaboration in the…

Borna Disease Basic Information Definition • Borna disease virus (BDV) is an enveloped, single-stranded RNA virus that causes polioencephalomyelitis in horses. • Transmission most likely occurs through contact with infected…