Dermatoscopic examination

Dermatoscopy is a non invasive technique that allows dermatologists to examine moles and other skin lesions in much greater detail than with the naked eye. A dermatoscope combines magnification with specialised lighting to reveal structures within the skin that help distinguish benign moles from early skin cancers.

What is a dermatoscope?

A dermatoscope is a handheld device placed gently on the skin surface. It provides:

• Magnification to view fine structures within the lesion
• Polarised or non polarised light to reduce surface reflection
• The option to take clinical and dermatoscopic photographs for monitoring

The examination is quick and painless. A contact gel or liquid may sometimes be used to improve the optical quality between the device and the skin.

Why dermatoscopic examination is important

Dermatoscopy improves the accuracy of assessing pigmented and non pigmented skin lesions. It helps the dermatologist to:

• Identify characteristic patterns of benign moles
• Detect early features suggestive of melanoma
• Differentiate between various types of pigmented lesions
• Decide which lesions can be safely observed and which should be removed

This is particularly helpful when assessing atypical or changing moles, moles of special sites such as nails and soles, and other types of moles.

What to expect during the examination

Dermatoscopy is usually carried out as part of a comprehensive mole check. The dermatologist will:

• Visually inspect your moles and identify any lesions needing closer review
• Use the dermatoscope to examine selected moles in detail
• Explain the findings and whether a lesion appears benign or suspicious
• Recommend observation, repeat review or surgical removal as appropriate

In some cases, dermatoscopic images may be stored to compare changes over time. This can be particularly useful in people with many moles or with a strong family history of melanoma.

Next steps after dermatoscopy

If a mole shows reassuring features, no immediate treatment is needed and you will be advised on how to monitor your skin at home. If there are worrying features, the dermatologist will discuss removal of the lesion under local anaesthetic so that it can be examined under the microscope.

Dermatoscopy does not replace the need for a biopsy when melanoma is suspected, but it helps to target which lesions need this and which can be safely observed, reducing unnecessary surgery.

If you are concerned about a mole or would like a detailed assessment using dermatoscopic examination, please arrange a mole check or get in touch via the contact page.