Eli, a 15-year-old howler monkey who lives at Utah's Hogle Zoo, underwent endoscopy and flushing of the nasal cavity and sinuses this week. Eli developed nasal discharge a few months ago, and a CT scan confirmed sinusitis. Veterinarians Nancy Carpenter and Erika Crook assisted Richard Orlandi, a surgeon at the University of Utah School of Medicine, who said Eli was his first monkey patient.

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