Library
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Chronic lymphocytic leukemia is a slowly progressing cancer of a type of white blood cell called a lymphocyte. It can develop at any age but is more typically detected in middle-aged to senior dogs. It also seems to be more prevalent in German Shepherds and Golden Retrievers. This disease is often asymptomatic and detected on routine lab screening. Further diagnostic procedures, as well as treatments and prognoses, are described in this handout.
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Chronic obstructive pulmonary disease or chronic bronchitis is a slowly progressing inflammatory condition of the lower airways. It most often affects small or toy breeds from middle-aged and senior dogs. The most common sign is a chronic dry cough. Exercise intolerance, collapsing, wheezing, or noisy breathing may develop as the condition worsens. Airborne irritants/allergens, smoke, chronic respiratory infections, obesity and dental disease are implicated in triggering the disease. Diagnosis can be made by ruling out other causes of cough through a minimum diagnostic database, radiographs, bronchoscopy, and cytology and culture of lung material obtained through tracheal wash or bronchoalveolar lavage. Treatment aims to minimize inducing factors including weight loss and avoidance of environmental irritants, as well as employing medications such as corticosteroids and bronchodilators. If using long-term, these medications are most often given using metered dose inhalers to manage the disease successfully.
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Clostridial enterotoxicosis is a complex and poorly understood syndrome characterized by diarrhea that is associated with the bacteria Clostridium perfringens (CP). It is associated with acute or chronic diarrhea. Clostridial enterotoxicosis is not caused by the bacteria directly, but by a toxin produced by the bacteria.
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The general condition of your dog's skin and coat are good indicators of his health. A healthy coat should be shiny and smooth, not brittle or coarse, and healthy skin should be supple and clear, not greasy, flaky, or bumpy. Selective breeding has led to the development of dogs with various coat characteristics requiring varying grooming needs. Nutrition also plays an important role in skin and coat maintenance.
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Coccidioidomycosis is a fungal disease caused by the soil fungus Coccidioides immitis or Coccidioides posadii. The early signs of coccidioidomycosis include fever, lethargy, lack of appetite, coughing, and joint pain. Diagnosis is by biopsy of lesions or blood testing for antibodies to the Coccidioides organism. The prognosis for recovery is dependent of the extent of lesions in the dog’s body.
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Colitis simply refers to inflammation of the large intestine or colon. Signs include frequent, small volumes of semi-formed to liquid feces, straining, and small amounts of bright red blood. The causes of colitis include stress, infections, and parasites, trauma, allergic colitis, and primary inflammatory bowel disease. The diagnosis of colitis is based on your pet's clinical signs and history, microscopic evaluation of the feces, rectal examination, cytology, and blood tests. The specific cause of colitis will dictate the appropriate treatment. For most dogs diagnosed with colitis, the prognosis is excellent for a speedy recovery.
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Collie Eye Anomaly (CEA) is a genetic mutation affecting many breeds that causes developmental defects in the eye that can lead to vision deficits or blindness. This defect can be diagnosed by a veterinary ophthalmologist between 6 and 8 weeks of age by visualizing spots of choroidal hypoplasia or a colobomas . It can be associated with microphthalmia or enophthalmia. It can lead to retinal detachment and blindness. Although laser repair of partial retinal detachments can be attempted if detected in early stages, there is generally no treatment for CEA. Vision varies depending on the extent of the lesions and some dogs will become blind. Prevention requires not breeding animals that carry the mutation and this can be achieved through genetic testing of breeding dogs.
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Color dilution alopecia is an autosomal recessive genetic disorder that affects dogs with dilute-colored coats causing hair loss. Some dogs will also be affected by secondary bacterial infections so topical management and pruritus treatments may be needed to improve the dog's comfort. Affected dogs and their relatives should not be bred.
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Congestive heart failure (CHF) refers to the heart's inability to pump adequate blood to the body. There are many causes of CHF in dogs. The two most common causes are mitral valve insufficiency (MVI), or a leaky mitral valve, and dilated cardiomyopathy (DCM). The most common clinical sign of CHF is persistent coughing accompanied by difficulty breathing. Other signs include coughing when at rest or sleeping, an increased resting respiratory rate or excessive panting, persistent loss of appetite, a swollen belly, and pale or bluish gums.
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The conjunctiva is the lining tissue that covers the globe of the eye and lines the eyelids and the third eyelid. Conjunctivitis refers to inflammation of this tissue. The most common clinical signs of conjunctivitis include discharge from the eyes, squinting or excessive blinking, and redness or swelling around the eyes. Conjunctivitis often involves both eyes, but only one eye may be affected in certain conditions. The most common causes of conjunctivitis include bacterial and viral infections, allergies, hereditary conditions, and tumors. The main goal of diagnosis is to determine if the conjunctivitis is a primary or secondary problem, if there is additional disease or damage to the eye, if the condition is allergic, or if it involves the sclera. In order to differentiate many of these conditions, a complete and detailed ophthalmic examination must be performed. Treatment is directed at the specific cause and may include both topical and oral medications. Most dogs have an excellent prognosis in most cases of conjunctivitis.
