What is Dermoscopy definition/concept

It is a procedure performed by a dermatologist in order to observe more clearly the most varied skin lesions, as a strategy to be able to formulate a diagnostic impression. Dermoscopy

Despite great technological advances, some injuries must be evaluated by the physician to be diagnosed. Through semiology, the way in which diseases are presented can be studied from the point of view of symptoms and discoveries that the physician may encounter.

What does dermoscopy consist of?

This procedure is performed with the use of an instrument called a dermatoscope, which is a kind of microscope with a light source that allows the lesion to be viewed with an increase of up to 400 times its size, allowing for better inspection. This device is available in portable forms that are easy to handle and transport to the dermatologist.

These devices allow scanning the image on the computer and its consequent obtaining photographs, you can create a database data with injuries of a patient and follow up.

In which cases should a dermoscopy be performed?

This device is applied directly over each lesion to better observe it. It is mainly used to assess in more detail pigmented lesions such as blemishes, especially those with irregular surfaces or areas of pigment variation in search of characteristics suspected to be manifestations of skin cancer, more specifically an aggressive tumor known as melanoma malignant.

Another type of lesion that must be differentiated from specific melanomas are some skin changes involving blood vessels, such as hemangiomas, which are lesions that grow as red or purple warts and are related to the dilation of skin capillaries. These injuries are very common in children and the elderly. Dermoscopy

An additional use of this diagnostic method is the evaluation of infectious skin lesions, especially lesions such as scabies, leishmaniasis ulcers and warty lesions such as those produced by the human papilloma virus (HPV).


The main purpose of this study is to identify the characteristics of skin lesions, both visible and non-visible to the naked eye. This allows for a better diagnosis so that the resection of lesions suspected of malignancy can be performed, also avoiding unnecessary amputations.

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