Mole mapping is a surveillance program for patients who are at high risk of developing malignant melanoma. Mole mapping typically involves a clinical skin examination and a dermoscopy. The two types of mole mapping procedures are conventional photographic imaging and digital dermoscopic imaging.
Conventional Photographic Imaging
In conventional photographic imaging, a series of photos are taken of various body regions in order to create a map of a person’s skin. Using this quick technique, new moles can be detected easily. However, conventional photographic imaging is not as detailed as dermoscopic imaging, thus detecting changes in moles can be difficult using this technique.
Dermoscopic Imaging
Dermoscopic imaging allows detailed images of moles to be recorded. The images can be magnified and illuminated. Using this technique, earlier detection of melanoma is possible, and changes in a mole can be seen before they are visible to the naked eye. The downside of dermoscopic imaging is that it is time-consuming.
Which Mole Mapping Technique Is Best?
Both conventional photographic imaging and dermoscopic imaging have their pros and cons, so weigh the benefits of each and discuss your options with your healthcare provider. Sometimes, it is best to use a combination of the two techniques.
Who is a Suitable Candidate for Mole Mapping?
You are a suitable candidate for mole mapping if you have:
- Many moles (50 to 100)
- Moles on the back that are difficult to keep an eye on
- A strong family history of melanoma
- Previous history of melanoma
- Moles that are unusual in color or shape
- Fair skin that has been severely sunburned
Advantages and Disadvantages
Mole mapping helps to detect melanoma at the earliest possible stage, but it has limited diagnostic ability. As such, mole mapping should be used to catalogue moles, but not to diagnose melanoma.
How Frequently Should I Check My Moles?
If you are at high risk for developing melanoma, check your moles once a month or at least once every three months.