Ascariasis
Ascariasis is a disease affecting dogs caused by the intestinal parasitic roundworm (or Ascaris lumbricoides). Roundworms are often quite large — up to 10 to 12 centimeters in length — and can be present in extremely high numbers within an infected animal. When they are found in a dog’s body, it can lead to abdominal swelling (distension), colic, gastrointestinal issues and even intestinal rupture.
The condition or disease described in this medical article can affect both dogs and cats. If you would like to learn more about how this disease affects cats, please visit this page in the PetMD health library.
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Second-degree Atrioventricular Block - Mobitz Type 1 in Dogs
The sinoatrial node (SA Node, or SAN), also called the sinus node, is the initiator of electrical impulses within the heart, triggering the heart to beat, or contract, by firing off electrical surges. The atria, the two upper chambers of the heart that receive and send out blood, are prompted into action by the SA node’s electrical impulse, which then activates the atrioventricular node (AV node). The AV node conducts the normal electrical impulses from the atria to the ventricles, coordinating the mechanical activity so that the atria have forced the blood down into the ventricles before the ventricles contract to send the blood out into the body through the pulmonary artery and aortic artery.
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Status Epilepticus in Dogs
Status epilepticus, or epilepsy, is a neurological condition that results in recurrent seizures in dogs.
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Separation anxiety in dogs usually are destructive or otherwise inappropriate when an owner leaves the pet or is not in close proximity. Behaviors that may be seen include vocalization, destroying objects, digging or even depression. However, these behaviors may also be due to other conditions or environmental cues. Therefore, it is important for the behaviorist or veterinarian to obtain the history of the dog before attributing separation anxiety as the primary or sole cause of the behavior.
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Reproductive Genetic Abnormalities in Dogs
Sexual development disorders in dogs occur due to errors in the genetic coding, which involve the chromosomes responsible for development of the sex organs - including the gonads (the male and female reproductive organs) - or when errors in gene development result in abnormal sexual differentiation, making it difficult to distinguish between male and female animals. Sexual disorders tend to be breed specific.
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Acral Lick Dermatitis
Acral lick dermatitis is a firm, raised, ulcerative, or thickened plaque usually located on the back side of the wrist, on the ankle, or between the toes. This disease primarily affects dogs, and most commonly large breeds, especially Doberman Pinschers, Labrador Retrievers, Great Danes, Irish and English Setters, Golden Retrievers, Akitas, Dalmatians, Shar-peis, and Weimaraners. The age at which it occurs in animals varies with the cause. Some experts suggest that it is more common in males; others indicate there is no preference.
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Contact Dermatitis in Dogs
Contact dermatitis may be caused by an allergy, or it may simply mean that your pet has touched something that has irritated its skin, such as the sap in poison ivy, or salt on a road. It is difficult to distinguish one from the other because the symptoms usually appear the same. Allergic reactions require a previous, sensitizing experience with the irritant. The next contact with the irritant is when symptoms occur. Both dogs and cats can suffer from allergic contact dermatitis and irritant contact dermatitis. It can occur at any age, and is a direct result of the irritating nature of the offending compound.
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Melanocytic Tumors of the Skin and Digits in Dogs
Melanocytic tumors are benign or cancerous growths, arising from melanocytes (pigment-producing skin cells) and melanoblasts (melanin-producing cells that develop or mature into melanocytes). These tumors do not seem to have a genetic basis; however, males, especially Scottish Terriers, Boston Terriers, Airedale Terriers, Cocker Spaniels, Boxers, English Springer Spaniels, Irish Setters, Irish Terriers, Chow Chows, Chihuahuas, Schnauzers, and Doberman Pinschers, seem to have a predilection to the condition. Dogs 10 years or older are also more prone to melanocytic tumors.
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Atlantoaxial Instability
Atlantoaxial instability results from a malformation in the first two vertebrae in the neck of an animal. This causes the spinal cord to compress and results in pain or even debilitation for the pet. The disorder is uncommon in older dogs and larger breeds of dogs. It is generally found in smaller, toy breeds. To ensure the best possible chance for a full recovery, it is important to treat the animal once an occurrence or sign of distress is observed.
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Degenerative Myelopathy in Dogs
Degenerative myelopathy is the general medical term that refers to the disease of the dog’s spinal cord or bone marrow. The condition does not have specific cause and may remain unidentified. While the disease can affect any breed and any age of dog, older animals are most often afflicted with the disease. Prognosis of this disease is not positive, as it is the degeneration of the animal’s spinal cord, leading to loss of numerous bodily functions.
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