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Educational Articles

Medical Conditions

  • This handout outlines corneal ulcers in cats, a painful eye condition often resulting from trauma. Other causes, clinical signs, diagnostic testing, and treatment options are also explained.

  • The cornea is the transparent, shiny membrane that makes up the front of the eyeball. With a corneal ulcer, fluid is absorbed from the tears into the stroma, giving a cloudy appearance to the eye. The most common cause of a corneal ulcer is trauma. Less common causes of corneal ulcers include bacterial infections, viral infections, and other diseases.

  • A cough is an expiratory effort producing a sudden, noisy expulsion of air from the lungs. In cats, coughing is most often a sign of an inflammatory problem, affecting the lower respiratory tract, especially some form of bronchitis, often due to an infection. Heartworm infection, allergies, presence of foreign material within the airway, or irritation from inhaled liquids or gases can all be responsible for coughing and respiratory problems in cats. In order to diagnosis the cause, blood tests, laboratory cultures, endoscopic examination, and radiography may be performed. Treatment depends on the diagnosis and your cat's medical condition.

  • Crop infections in birds are not as common as they once were, but are still a potentially dangerous condition in all avian species. A slowing or stoppage of crop motility can be caused by bacteria, yeast and a variety of viruses. Early veterinary attention is essential to help treat this condition.

  • Cryptosporidium is a species of single-celled parasite that can infect your dog through the gastrointestinal tract. Clinical signs such as diarrhea and weight loss may only be seen in immunosuppressed patients, including puppies. These patients may need supportive care and other treatment to control disease. Certain Cryptosporidium species can be spread between pets and humans, making this parasite zoonotic.

  • Crystalluria refers to the presence of crystals in the urine. These crystals are made up of minerals and other substances that would normally be dissolved in the urine; crystals form when these substances do not remain dissolved in the urine and instead coalesce (join together) into crystals. Crystalluria is diagnosed via urinalysis.

  • Cushing's disease is a condition in which the adrenal glands over-produce certain hormones. It may be caused by a pituitary gland tumor, an adrenal tumor, or prolonged corticosteroid use. Clinical signs include poor haircoat, pot-bellied appearance, increased drinking, and increased urination. Medical and surgical treatment options are discussed. Prognosis varies but is improved with intervention.

  • Cushing's disease is a condition in which the adrenal glands overproduce certain hormones. There are three types of Cushing's disease, each of which has a different cause. The most common cause of Cushing's disease is a pituitary gland tumor. Cushing's disease may also be the result of a benign or malignant tumor of the adrenal gland itself, or may be caused from the excessive administration of an oral or injectable steroid. Clinical signs, treatment, and prognosis are discussed.

  • Cushing's disease, or hyperadrenocorticism, is the overproduction of cortisol hormone by a dog's body. The clinical signs of Cushing's disease are similar, regardless of the underlying cause of the disease. However, it is essential to identify the type of Cushing's disease as the treatment and prognosis differ slightly depending upon the form of the disease.

  • Treatment for Cushing’s disease using mitotane involves two phases: initiating phase and maintenance phase. Monitoring your dog’s food and water intake is very important. This handout provides detailed treatment instructions for dogs prescribed mitotane. Follow your veterinarian’s instructions carefully and report changes in your dog’s behavior to your veterinarian.