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A 10-year-old castrated male Maine Coon cat was presented because of a 4-day history of constipation and recent hyporexia and vomiting. Because of the cat’s temperament, the cat was sedated for physical examination. The patient had a high rectal temperature (39.9 °C; reference range, 37.8 to 39.2 °C). A gallop murmur was auscultated. The abdomen was soft, and palpation of it did not elicit signs of pain; however, the colon was thought to have been distended with a large amount of feces. No fluid wave, organomegaly, or masses were palpated. A CBC revealed a moderate, nonregenerative hyperchromatic Heinz body
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