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==Signalment==
 
==Signalment==
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Atopic dermatitis is a disease of dogs, although it can occur sporadically in the cat. The typical age of onset of atopic dermatitis is between 6 months and 3 years of age and signs are hardly ever seen in animals under 6 months of age. Atopy is heritable and so breed predispoitions occur. Susceptible breeds include the : Beaceron, Boston Terrier, Boxer, Cairn Terrier, Cocker Spaniel, Dalmation, English Bulldog, English Setter, Fox Terrier, Sealyham Terrier, Setters, Shar-Pei, West Highland White Terrier, Wire Hiared fox Terrier, and Yorkshire Terrier<sup>beale</sup>. Certain breeds such as the Cocker Spaniel, Dachshund, Doberman Pinscher, German Shepherd, German Short-haired pPinter and Poodle appear to have a decreased risk of atopy. There is no sex predilection for developing atopy.
The typical patient with canine atopic dermatitis has an onset of allergic symptoms between 6 months and 3 years of age. Although possible, it is very uncommon for dogs less than 6 months to exhibit symptoms of atopy. Due to the heritable nature of this condition, breed predispositions occur. These may vary with the area being evaluated (genetic pool), as well as over time since breeders select for certain traits and characteristics. Studies that have evaluated relative risk of developing atopy compared to regional dog populations report the following breeds to be at risk for developing atopy: Beaceron, Boston Terrier, Boxer, Cairn Terrier, Cocker Spaniel, Dalmation, English Bulldog, English Setter, Fox Terrier, Sealyham Terrier, Setters, Sharpei, West Highland White Terrier, Wire Hiared fox Terrier, and Yorkshire Terrier. Breeds with decreased relative risk include the Cocker Spaniel, Dachshund, Doberman Pinscher, German Shepherd, German Short-haired pointer, and Poodles. There does not appear to be a sex predilection for developing atopy.
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Certain breds are predisposed to atopic dermatitis. These include West Highland White Terriers, English Setters, Shar-Peis, Wirehaired Fox Terriers, Golden Retrievers, Dalmatians, Boxers, Boston Terriers, Labrador Retrievers, Lhasa Apsos, Scottish Terriers, and Shih Tzus<sup.merck</sup>. The age of onset is generally between 6 months and 3 years, and there are no sex predispositions.
      
==Diagnosis==
 
==Diagnosis==
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