Educational Articles
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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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The complete blood count (CBC) assesses different parameters of the cells in the blood including total number, appearance, size, and shape. Red blood cells, white blood cells, and platelets comprise the cellular component of the blood.
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Corneal dystrophy is a term used to describe several conditions that occur in dogs and cause the corneas to become opaque. There are three major categories of corneal dystrophy: epithelial, stromal, and endothelial. Each is named by the anatomic location of the abnormal tissue and opacity.
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Collecting tissue samples for cytology or histopathology allow a pathologist to often give a diagnosis of the type of mass or tumor your pet has. Samples can be obtained by fine needle aspirate or biopsy, where a piece of the mass is cut out. Based on what the mass appears like under the microscope, the pathologist can often give a prognosis of how the tumor will behave.
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Your veterinarian wants to keep your pet healthy and the fact is that people who are better informed take better care of their pets. Do not be overwhelmed by “medicalese”. Try your best to understand this foreign language and if you cannot quite decipher it, ask your veterinarian to speak more plainly.
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If a tooth is unerupted, it is at risk of forming a destructive dentigerous (odontogenic) cyst in the bone. Although unerupted or broken teeth can be painful, dogs rarely show obvious signs of pain. Dentigerous cysts, including and the original tooth must be removed carefully as to avoid compromising the bone, which can easily fracture during the extraction. Dentigerous cysts are preventable if unerupted teeth are addressed early in life.
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Dermatomyositis is hereditary, immune-mediated disease of the skin muscles and blood vessels affecting primarily collies, Shetland Sheepdogs and mixes of these breeds. Other breeds can experience similar disease. Signs are usually first recognized in puppies but can present in young adulthood. Signs include: skin lesions (crusty erosions, patchy alopecia or ulcers) around the eyes, lips, face, ear flaps or tail tip, foot pad lesions; atrophy of chewing muscles or difficulty chewing; stiff gait and megaesophagus in severely affected dogs. Skin biopsies are diagnostic. Treatment involves treating secondary bacterial infections, reducing sun exposure, EFAs, and immunomodulatory medications including tetracycline, niacinamide, pentoxifylline, cyclosporine and corticosteroids. Prognosis varies depending on severity.
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This handout discusses the growing trend for designer dog breeds – the crossing of pure dog breeds to create dogs that combine “the best of both worlds.” The pros and cons of this practice are highlighted, along with some of the more common designer breeds currently available.
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Dexmedetomidine is a sedative/tranquilizer used primarily in cats and dogs as a pre-medication injection for anesthesia or for chemical restraint. It is also used orally in dogs for short-term anxiety management. The most common side effect is a low heart rate. Dexmedetomidine should not be used in patients with severe heart liver or kidney disease. It should be used cautiously in young, old, or weak animals. Consult your veterinary office immediately if you suspect a negative reaction or overdose.