Page 14 - Canine-Diseases

affected dog may develop a stiff, high-stepping, and exaggerated Cheyletiella yasguri mites. It is also referred to as “walking
gait that gradually worsens. Eventually, all four legs are affected dandruff” due to the appearance of the large, whitish mites as
with the hind legs affected first and more severely. Approximately they crawl across skin and fur, and the excessive scaling that
5% of dogs with wobblers may become acutely paralyzed in all accompanies the infection. The most important clinical sign of
four legs. Wobbler syndrome is primarily a disease of large and cheyletiellosis is scaling or dandruff. They are most commonly
giant breed dogs. Small breed dogs occasionally get the disease seen on the back and upper part of the body. The mites burrow
but it is uncommon. Wobbler syndrome is commonly seen in into and feed on the dog’s skin, causing mechanical irritation,
Great Danes (4.2%), Doberman Pinschers (5.5%), St. Bernard, inflammation, raised red bumps, skin sores from licking, chewing
Weimaraners, Labrador Retrievers, German Shepherds, Boxers, and self-trauma and mild to severe itchiness. Most dogs contract
Rhodesian Ridgebacks, Dalmatians, Samoyeds, Old English cheyletiellosis from other pets at animal shelters, breeders and
Sheepdogs, Bull Mastiffs, Borzois, Rottweilers, Chow Chows, groomers or other areas where numerous dogs have contact with
Golden Retrievers, Irish Setters, Irish Wolfhounds, Great one another. Humans can contract the disease from infected pet.
Pyrénéess, Bernese Mountain Dogs, Swiss Mountain Dogs, Basset
Hounds, Fox Terriers, and Beagles. Chiggers (trombiculiasis): Chiggers are common skin parasites
that are present throughout the central part of the United States.
Chalazion: Is non-infectious obstruction of meibomian gland The chigger mite is a small reddish-orange mite about the size of
causing extravasation of irritating lipid material in the eyelid the head of a pin. The scientific name for chiggers is Trombicula
soft tissues with focal secondary granulomatous inflammation. mites, but they are also known as red bugs, harvest mites, itch
Disorders that cause abnormally thick meibomian gland secretions mites, and scrub mites. These mites can infect and bite people, dogs,
include meibomian gland dysfunction and acne rosacea which and cats, and cause severe itching. In dogs, chiggers can be found
increase the risk of meibomian gland obstruction. Chalazia may around the legs, head, and abdomen. Symptoms of trombiculiasis
occur in the upper or lower lids, causing redness, swelling and include red raised bumps, broken skin, rashes, erythema, pimples,
pain. Initially the eyelid is diffusely swollen. Occasionally the and alopecia. Chiggers are commonly found throughout the year
eyelid can be massively swollen, shutting the eye completely. A in warm climates and in seasonal climates they present from spring
chalazion usually drains through the inner surface of the eyelid through fall. See Trombiculiasis
or is absorbed spontaneously over 2 to 8 weeks, rarely, it persists
longer. Chondrosarcoma (nasal and paranasal sinus): A chondrosarcoma
of the nasal and paranasal sinuses arises from the mesenchymal
Cheilitis: Inflammation of the lips. Cheilitis usually results from tissue, a connective collagenous tissue that is found throughout
an infection inside the mouth that extends to involve the lips. the body, and metastasizes to other parts of the body, including the
Cheilitis can be recognized by the serum crusts that form at the nasal bones. It usually occurs on one side of the nasal cavity and
junction of the haired and smooth parts of the lips. As crusts peel extends to the other side over time. Symptoms include intermittent
off, the skin becomes raw and denuded (bare) and is sensitive unilateral or bilateral nose bleed and/or discharge of pus containing
to touch. Involvement of the hair follicles produces a localized material, dyspnea (labored breathing), reverse sneezing, epiphora
folliculitis. In hunting dogs, chapped lips can be caused by contact (excessive watering of the eye), facial deformity, halitosis, poor
with weeds and brush. Dogs with canine atopy may irritate their appetite, weight loss, and seizures. Breeds that have been reported
lips by constantly rubbing and pawing the face. to be predisposed to nasal tumors are German Shorthaired Pointers,
German Shepherds, Keeshonds, Basset Hounds, Collies, Old
Cherry eye: Is the term used to refer to canine nictitans gland English Sheepdogs, Shetland Sheepdogs, and Airedale Terriers.
prolapse, a common eye condition in various dog breeds where the
gland of the third eyelid (nictitating membrane) prolapses (pops Chondrosarcoma (tumors of the larynx and trachea):
out) and becomes visible. Prolapse of the third eyelid gland appears Laryngeal and tracheal chondrosarcomas are malignant,
as a red swollen mass on the lower eyelid near the nose or muzzle slow growing, progressive, invasive tumors of the larynx and
(it takes its name from the resemblance to a cherry). The “cherry trachea. These fast spreading tumor originates in the cartilage, a
eye” may be large and cover a significant portion of the cornea, connective collagenous tissue that is found throughout the body.
or it may be small and appear only periodically. It is important Chondrosarcoma of the larynx and trachea is more common
to treat the condition as soon as possible in order to minimize in middle aged and older dogs. Symptoms include changes in
permanent damage to the eye or third eyelid gland. In most cases, voice, loss of bark, harsh noisy breathing, poor exercise stamina,
the gland returns to normal function within a few weeks of surgery. difficulty in respiration, loud noises while breathing, bluish mucus
The breeds most commonly affected include Cocker Spaniels, membranes, sudden collapse, and difficulty in ingesting food.
Bulldogs, Boston Terriers, Beagles, Bloodhounds, Lhasa Apsos, There are no known cause and are extremely rare in small animal
Shih-Tzus, and other brachycephalic breeds (dogs with “squished” veterinary medicine.
faces and short limbs).
Chondrosarcoma: A chondrosarcoma (CSA) is the second most
common primary tumor in dogs, accounting for 10% of all primary
bone tumors. This is a malignant, invasive and fast spreading tumor
Cheyletiellosis: Is an uncommon but highly contagious skin in dogs. Chondrosarcoma arises from the cartilage of the body, the
parasite of dogs, cats, humans, and rabbits caused by Cheyletiella connective tissue that is found between the bones and joints, often
spp. mites. In dogs, this disease usually involves infestation with metastasizing to other parts of the body, including the ribs. Large

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