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Zebra (medical) |
Zebra is a slang medical term for an obscure and unlikely diagnosis from ordinary symptoms.
It derives from the aphorism "when you hear hoof beats, think horses, not zebras", which was probably coined by Dr. Theodore Woodward, a former professor at the University of Maryland, Baltimore, School of Medicine.citation needed
A similar term for an obscure and rare diagnosis in medicine is fascinoma.