great imitator

noun

noun

Any of various medical conditions whose non-specific symptoms can lead to confusion with other diseases.

Syphilis is a wily infection. Its symptoms come and go and can look like a lot of other ailments, leading doctors to dub it “the great imitator.”2024 April 26, Brenda Goodman, “Doctors seeing more syphilis patients with unusual and severe symptoms, study shows”, in CNN:

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