In 1998, Grob, et al [7] introduced the ugly duckling concept-the observation that nevi in the same individual tend to resemble one another, and that MM often deviates from this nevus pattern.

The Ugly Duckling is the heart-warming, and sometimes heart-wrenching, story of a little "ugly" duckling. Ridiculed and laughed at, the Ugly Duckling leaves his home and journeys through the world ...

And I’m sure he’ll grow into his looks.’ But the other birds didn’t leave the ugly duckling alone. They laughed at him and called him names and sometimes even trod on him. Then they ...