Showing a typical example, if you have an abnormal area on your skin, your doctor will note size, shape, color, and texture of the area(s) in question.
More and more dermatologists use a technique called dermatoscopy(also called dermoscopy) to see spots on the skin more precise & clearly and get answers on that questions.
It improves the diagnostic accuracy
Curves for the performance of the clinical diagnosis without dermoscopy (red line) and dermoscopy (black line)
The accuracy of the clinical diagnosis of cutaneous melanoma with the unaided eye is only about 60%. Dermatoscopy, a non-invasive, in vivo technique for the microscopic examination of pigmented skin lesions, has the potential to improve the diagnostic accuracy up to 90%.
Dermatoscopy is characterized by 83% sensitivity and 69% specificity for the detection of melanomas. In clinical practice it is extremely important to know the correct assessment of the lesions on the patient’s body in terms of technical procedures as well as the basic knowledge of dermatoscopy.
The most precise pre-surgical method
Dermatoscopy is a method of in vivo evaluation of the structures within the epidermis and dermis. Currently it may be the most precise pre-surgical method of diagnosing melanocytic lesions. Diagnostic errors may result in unnecessary removal of benign lesions or what is even worse, they can cause early and very early melanomas to be overlooked.
Errors in assessment of dermatoscopy can be divided into those arising from failure to maintain proper test.
The Essential Diagnostic Device
Dermatoscope should be an essential diagnostic tool used not only by experienced dermatologists, but it should also be used in screening of melanocytic lesions performed by various specialists such as oncologists, surgeons, and general practitioners.
The use of dermatoscope in dermatological consultation extends the total time of the examination by only about 72 s, so it is worth using dermatoscope to assess any lesions on the body of the examined patient during a routine dermatology check up.
Where to Use
A dermatoscope was originally invented for diagnosing malignant melanoma skin cancer. But recent advanced and modified dermatoscopes are becoming a standard for viewing and diagnosing many skin diseases and hair research and also to determine scalp condition.
Images of hair captured by dermatoscopes, and even just modified digital cameras with optical attachments, can be processed using special software to count hair density, diameter, and hair growth rates.
Dermatoscopes can be used for a close up examination of many skin diseases including folliculitis, xeroderma pigmentosum, lentigo maligna, dermatofibroma, scar tissue and vascular supply, and a variety of nevi.