Figure 1. Full body.

 

Case history and Signalment

A 19-year-old Arabian gelding from Iowa presented to the ISU Equine Clinic with a progressive hair loss over the last couple of weeks. Physical examination showed moth-eaten alopecia with mild scaling and hyperpigmentation all over the body involving the nostrils, periocular, neck, thorax, and appendages. These areas of patchy alopecia range from 0.5-2.5 cm in diameter. The animal showed significant pruritus throughout the examination. Three punch biopsies were taken from the left neck.

 

FIGURES

Figure 2: Right side of the neck.

Figure 3: Left side of the face.

Figure 4: Histopathology. 4X.

Figure 5: Histopathology. 10X.

Figure 6: Histopathology. 20X.

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