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Zinc toxicosis in a captive striped hyena (Hyaena hyaena).

An 11-yr-old captive-born female striped hyena (Hyaena hyaena) acutely developed lameness and swelling of the left front foot with anorexia, depression, and lethargy. Hematologic evaluation revealed regenerative anemia, azotemia, and other mild serum electrolyte and mineral abnormalities. Twenty radiographically visible coins and 10 coin fragments were removed by laparotomy and gastrotomy following unsuccessful medical therapy. The animal died during anesthetic recovery. Zinc serum levels were 41.0 ppm at first presentation and 36.0 ppm at the time of surgery, compared with concentrations of 1.78 ppm and 2.82 ppm for serum taken from this female and a male hyena 3 mo previously. Zinc toxicosis was diagnosed based on the similarity of clinical signs to those described in dogs, presence in the stomach of pennies minted after 1982 (when the zinc content of U.S. pennies was increased substantially), necropsy findings, and elevated serum and liver zinc values. The case highlights the risk posed by penny ingestion for subsequent zinc toxicosis in captive omnivores.

Animals↗

[Ophthalmological medals and coins (author's transl)].

The author - a collector of ophthalmological medals - made a list of all ophthalmological medals and coins that he could find. In this cataloguq he does not only mention the memorial and prize medals of ophthalmologists but also those of physicists, physiologists, surgeons, opticians who have made a name in the field of ophthalmology. Further ophthalmological congress medals and badges are presented.

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