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→Diagnosis
==Diagnosis==
==Diagnosis==
The diagnosis is based on the signalment, a thorough history, appropriate physical examination findings, and ruling out of other causes of pruritus. Differential diagnoses include food allergy (nonseasonal), flea allergy (seasonal), contact allergy, and scabies. The primary reason for pursuing intradermal or serologic allergy testing is to identify the offending allergens in an animal, and to formulate specific immunotherapy. Allergy testing (intradermal or serologic) is a diagnostic aid that measures elevated levels of tissue-bound or circulating IgE; alone, it is not sufficient to diagnose atopy. Test results are significant only if the offending allergens identified are compatible with the history or seasonality of pruritus.
===Clinical Signs===
===Clinical Signs===