Opticom Data Research

Providing information, analysis and software relating to moles and skin cancer



Mole Database


The following definitions are used:

  • Area: The surface included within the mole’s border.
  • Asymmetry: Measures the asymmetry of a mole's border around a point at the center of the mole. The larger the value, the more asymmetric the border is. A perfectly symmetric border has an asymmetry of zero (0).

    Values used are similar to those of border irregularity (see below).
  • Border Irregularity: Measures the roundness of a mole's border. The larger the value, the more irregular (or "wiggly") the border is. A circle has a border irregularity of zero (0).

    The following values are used:
    0 Very Low
    1 through 3 Low
    4 through 6 Medium
    7 through 9 Medium-High
    10 through 12 High
    13 and higher Very High


  • Color Map: Click here.
  • Perimeter: The length of the mole’s border.
  • Size: The maximum length of a mole (i.e. the length between the two most distant points on the border of a mole). The size of each mole in the database is provided by the image owner when submitting the image.

Mole database Mole Database


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Last modified: January-13-2015