One out of every ten newborn infants displays a weird quirk of the human body called “harlequin sign.” It makes babies spontaneously turn parti-colored, especially when their tiny bodies heat up.

Harlequin ichthyosis is a rare genetic condition that causes hard, ... The sign people usually first notice is hard, thick scales all over the body, including the face.

Nature Reviews Neurology - Harlequin syndrome - one face of many etiologies. ... Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Left-sided flushing and sweating of the face in a 50-year-old woman with Harlequin syndrome after running. No ptosis or miosis was observed. Harlequin syndrome is a rare disorder of the sympathetic ...

Lady Gaga just announced a surprise “companion album” to the “Joker: Folie à Deux” soundtrack, titled “Harlequin.” Here’s everything we know about the release.