Erythema multiforme in dogs and cats: literature review and case material from the Cornell University College of Veterinary Medicine (1988–96)
1999
Scott, Betty Marshall | Miller Jr,
A review of case material from the Cornell University College of Veterinary Medicine from 1988 to 1996 identified 20 dogs and one cat with definitive or presumed erythema multiforme. An additional 24 dogs and five cats with definitive or presumed erythema multiforme were found in the veterinary literature. Erythema multiforme accounted for only 0.40% and 0.11%, respectively, of all the canine and feline dermatology cases examined over a 9‐year period. German Shepherd dogs and Pembroke Welsh Corgis appeared predisposed. The condition was manifested as a vesiculobullous and/or ulcerative dermatosis in the majority of dogs and cats. In dogs, the most commonly affected body sites included the ventrum (especially axillae and groin), mucocutaneous junctions, oral cavity, pinnae, and footpads. Histopathological findings in cutaneous and mucocutaneous biopsy specimens were consistent with previously published criteria. In dogs, erythema multiforme occurred more frequently in patients receiving drug therapy. In cats, all cases of erythema multiforme were presumed to be drug related. Elimination of the associated trigger factor and supportive care usually resulted in resolution of the erythema multiforme within 1–2 weeks. Four dogs with severe idiopathic erythema multiforme were successfully managed with glucocorticoids or azathioprine.
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