Year-and-a-half-old testing for anabolic steroids in racehorses produced some unusual results–including the discovery of a Standardbred filly that’s actually a male.

In Pennsylvania, tests showed a high elevation of testosterone in Arizona Helen, who was raced at the harness track Harrah’s Chester Racetrack and Casino, officials said April 23 during a session at the Association of Racing Commissioners International annual convention in Lexington. The test led to further tests that showed Arizona Helen’s white blood cells indicated she had the “XY sex reversal.”

Arizona Helen is an equine hermaphrodite.  

“A few little curve balls have been thrown our way,” said Scot Waterman, DVM, executive director of the Racing Medication and Testing Consortium

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