Library
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This handout explains hepatic microvascular dysplasia, a condition where microscopic blood vessels within the liver are underdeveloped or absent, resulting in decreased blood flow to the liver. As a result, the liver is less capable of dealing with toxins or producing the vital proteins needed for good health. Methods to diagnose the condition and its treatment options are also explained.
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Hepatoid gland tumors are a type of cancer that develop from the sebaceous (sweat) glands of the skin. The most common location for these tumors to develop is the perianal area, and the most common tumor is the perianal adenoma. Perianal adenocarcinomas, and rarely perianal epitheliomas may also occur. These tumors appear as one or more small, round, pink, hairless, slow-growing nodules around the anus, and can sometimes ulcerate and become infected. Malignant tumors can grow much bigger and faster, invade the underlying tissue, and metastasize. Diagnosis may be made by fine needle aspiration, biopsy, or full excision of the tumor. Staging is recommended for adenocarcinomas. Treatment may involve surgical removal along with neutering, cryotherapy, laser ablation, radiotherapy, chemotherapy, and occasionally hormone therapy. The prognosis is good with perianal adenomas, fair to poor with adenocarcinomas, and generally good with epitheliomas.
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Hepatozoonosis in dogs is caused by ingestion of one of two organisms: H. americanum and H. canis. Both parasites are more common in the southern United States. The clinical sign and treatments for dogs with hepatozoonosis differ depending on the parasite species causing the infection. In either case, with appropriate treatment, the prognosis is generally good.
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Hip dysplasia is a deformity of the hip that occurs during growth. The result is laxity of the joint, followed by degenerative joint disease (DJD) or osteoarthritis (OA), which is the body's attempt to stabilize the loose hip joint. Hip dysplasia is a genetic disease that is affected by factors such as diet, environment, exercise, growth rate, muscle mass, and hormones. It is predominantly seen in larger dogs. Treatment depends upon the pet's clinical signs and amount of discomfort the pet is in.
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Urticaria, or hives, is a skin condition characterized by raised red skin welts caused by direct contact with a substance that causes an allergic reaction. These substances include insect bites, food, pollens, molds, vaccinations, and medications. If the swelling progresses to the throat, breathing can be compromised and result in a medical emergency called anaphylaxis. Injectable antihistamines and corticosteroids usually bring about a dramatic improvement, sometimes in as little as a few minutes.
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Cracks may form in the horse's hoof wall, usually in a vertical direction, and either originate from the ground surface (sometimes called grass cracks) or, less commonly, from the coronary band (sometimes called sand cracks).
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Horner's syndrome is a common neurological disorder of the eye and facial muscles and can occur suddenly. Dysfunction of the sympathetic nerves of the eyes and surrounding facial muscles causes Horner’s syndrome and may be due to an injury such as a bite wound or blunt trauma, a tumor, intervertebral disc disease, or middle or inner ear disease. If an underlying cause can be identified, treatments will target that; however, many cases will spontaneously recover after some time.
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Abortion is the delivery of a dead foal and its placenta before an age at which the foal would have been able to survive independently. This is usually taken to be up to day 300-310 of gestation.
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Canine hot spots are red, inflamed skin lesions that appear quickly, ooze, and may contain pus. They are the result of a dog excessively scratching, licking, or chewing at an itch. There are several possible underlying causes of the itch and it is crucial to determine what it is to successfully treat the problem. This handout explains these possible causes and the treatment(s) required to resolve them.
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The old theory that one dog year is seven human years does not hold true due to a variety of factors including breed and size of the dog. This handout discusses emotional aging and senior statuses for different breeds of dogs.
