One of These Things Is Not Like the Others

Courtesy flickr user pasma (CC)

One of these things is not like the others,
One of these things just doesn’t belong,
Can you tell which thing is not like the others
By the time I finish my song?
(Words and Music by Joe Raposo and Jon Stone, Sesame Street)

The current public health message to patients is to look for the ABCD’s of melanoma. But how many people do you think can actually remember what that mnemonic stands for?

The ugly duckling sign of melanoma was first described in 1998 by Dr. Jean-Jacques Grob of the University of Marsielle in Provence, France. It holds that nevi on a given individual tend to resemble each other, said Dr. Ashfaq A. Marghoob, at today’s meeting at the annual Hawaii Dermatology Seminar sponsored by Skin Disease Education Foundation. Most individuals harbor nevi that resemble each other like brothers. And when a lesion breaks that common mold, it becomes an ugly duckling…

This post first appeared in our sister blog, The Mole: the Skin & Allergy News blog. To read the whole post by managing editor Amy Pfeiffer, go here.


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Filed under Dermatology, Family Medicine, IMNG, Internal Medicine, Oncology

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