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Learn about a new painless option to test a suspicious mole without having to cut the skin.


 As a dermatologist, I'm always on the lookout for new technologies that can help diagnose and treat skin conditions more effectively. One such technology that has been gaining attention in recent years is the DermTech test, which uses tape and DNA analysis to detect melanoma.

Melanoma is a deadly form of skin cancer that can be challenging to diagnose in its early stages. Traditionally, a biopsy is used to remove a suspicious mole or lesion, which can leave a scar and be painful for the patient. Moreover, some patients may have numerous dysplastic nevi, which are moles that have an abnormal appearance and can be difficult to monitor for changes over time.

DermTech offers a non-invasive alternative to traditional biopsies. The test involves using a special adhesive tape to collect cells from the surface of a suspicious mole or lesion. These cells are then analyzed using a proprietary DNA analysis technology to determine whether there are any genetic changes associated with melanoma.

One of the main benefits of the DermTech test is that it is non-invasive, meaning that it does not require a biopsy. This can be a significant advantage for patients who are concerned about scarring or who have numerous dysplastic nevi. By using the DermTech test, these patients can have their moles and lesions analyzed without the need for a biopsy, which can be painful and leave a scar.

Another advantage of the DermTech test is that it is highly accurate. In clinical studies, the test has been shown to have a high sensitivity and specificity for detecting melanoma. This means that the test is able to accurately identify melanoma in patients who have the disease, while also avoiding false positives in patients who do not have melanoma.

In the future, it may be possible for patients to do the DermTech test on their own. While currently, the test must be administered by a healthcare professional, I hope that the company is working towards making it available as a home-based test. This would allow patients to collect their own samples and send them to a lab for analysis, saving time and money while also providing greater privacy, efficiency & convenience for patients who may feel uncomfortable waiting for a dermatology appointment to collect the samples.

It's important to note that the DermTech test is not approved for use in children or patients with darker skin tones. It is also not approved for the use on the hands or feet. The test's accuracy may be affected by factors such as age and skin tone, and further studies are needed to determine its effectiveness in these populations.

We are proud to be able to offer this state of the art test as an option to our patients when evaluating a suspicious lesion.

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