Figure A.	Figure B.

Presentation:

A 2.5-year-old, intact male Labrador retriever presented for evaluation of scratching, skin rash, and suspected allergies of approximately 6 months’ duration. The clinical signs seemed to start after the dog moved to a new residence. The dog, which was on a monthly flea preventive, had been treated with numerous antibiotics, corticosteroids (oral and injectable), diet modulation, and antihistamines with limited response. Physical examination revealed marked pruritus with generalized, crusted, erythematous, papular eruptions along the ventrum and medial proximal extremities; hypotrichosis; and excoriations (FIGURE A). There was also crusting along the ear margins (FIGURE B; arrow) and elbows.

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