A skin scrape from a cow with pruritus and crusts around the caudal thighs and perineum shows the organism below. What is the presumptive diagnosis?

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A cow is presented with pruritus and crusts around the face, as shown in image one.

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A three-year-old male neutered Labrador retriever from the Ohio river valley basin is presented with chronic large bowel diarrhea and signs of respiratory disease (cough, fever). A lymph node smear shows round to ovoid (1-4 micrometers) encapsulated structures inside macrophages and giant cells. The organisms have thin cell walls, with thin clear zone between cell wall and cytoplasm.

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A 4-year old male Thoroughbred horse presents to you for colic. During your work up, you note a painful enlargement at the root of the mesentery on rectal palpation. You suspect that the cause of the horse's colic are adults from the egg shown in the picture below. Which of the following drugs effectively kills the adult organisms that can cause this condition?

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Which type of cat is predisposed to excessive play aggression?

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A seven-week-old pot-bellied pig is presented with a posterior swelling that looks like this: Click here to see image Which one of the following is the most likely clinical diagnosis?

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In canine patients with primary hyperparathyroidism, a chemistry panel would show:

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A client who raises North American farmed deer and elk asks you to remove of the entire soft antler of several animals in the first 55-65 days of growth, a practice called "velveting." What should you tell the client?

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Which type of immune reaction is occurring in this picture of a horse with limb edema secondary to a localized vasculitis?

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An emaciated cow is presented. She appears weak and anorexic, with enlarged superficial cervical lymph nodes.

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