Description    Foals less than 4-days of age developed transient ulcerative dermatitis, thrombocytopenia, and neutropenia. Affected foals survived and were healthy as yearlings. The cause of this cluster of signs is unknown but it might be associated with colostral antibodies or other factors in colostrum. A similar condition was seen in an adult horse.
Species   Equine
Signs   Alopecia, Anorexia, Dullness, Epistaxis, Fever, Hemorrhage of any body part or clotting failure, Mammary gland swelling, Moist skin, hair or feathers, Oral mucosal ulcers, vesicles, Pain mammary gland, Petechiae, ecchymoses, purpura, Pruritus, Skin crusts, Skin edema, Skin erythema, Skin pain, Skin scales, Skin ulcer, Tachycardia, Warm skin
References   Hardefeldt LY. Successful treatment of presumptive immune mediated thrombocytopenia and dermatitis with azathioprine in a pregnant mare. Eq Vet Educ 2010;22:495 [Web Reference]
Schott II HC. Cutaneous Markers of Disorders Affecting Young Horses. Clin Tech Eq Pract 2006;4:314 [Web Reference]
Giguere S. Immunologic disorders in neonatal foals. Vet Clin N A Eq Pract 2005;21:241
Perkins GA. Ulcerative dermatitis, thrombocytopenia, and neutropenia in neonatal foals. J Vet Intern Med 2005;19:211 [Web Reference]
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