Cholecalciferol or vitamin D3 is a fat-soluble steroid needed to absorb a number of chemicals and phosphates. Ingestion of rodent poison and vitamins high in Vit D3 content are the most common causes of vitamin D3 toxicosis in dogs.
Valley Fever is an infection by the fungus Coccidioides immitis in dogs. This species of fungus is commonly found in dusty, dry areas in southwestern USA, Mexico, and parts of central and south America.
Thiamine (vitamin B1) deficiency is an uncommon, but potentially serious condition in dogs resulting from inadequate intake, poor absorption, or excessive excretion of vitamin B1.
Discospondylitis, aka vertebral disc inflammation in dogs describes a bacterial or fungal infection affecting the vertebrae (bones of the spine) and the disks between them. Discospondylitis results from the spread of infection through the bloodstream, migrating foreign bodies (such as grass awns), bite wounds, or following spinal surgery.
Vaginal and vulvar tumors in dogs are abnormal growths on female genitalia.
Vestibular disease in dogs is a common syndrome that develops due to dysfunction of the vestibular apparatus.