Dermatoscopy with melanoma
With melanoma, dermatoscopy is an inexpensive and effective method of diagnosis. It is non-invasive and a special tool called "dermatoscope" is used in the process of the doctor. On a new formation the liquid (an alcohol or an impulsion oil) is put, thanks to what those structures which are located in the top layer of a derma can be easily visualized.
The doctor evaluates the structural components and color shades of the nevus, which allows you to quickly differentiate the non-melanocytic or melanocytic nature of the mole. Thanks to this method, it is also possible to detect some structural phenomena of the neoplasm. So, for example, if the patient reveals areas without a structure, this means that the tumor (melanoma) regresses. When black small dots appear inside the structure, this indicates that the tumor is malignant.
With the help of dermatoscopy, complex surgical operations on pigmented formations can be avoided. This method makes it possible to increase the accuracy of the assessment of the diagnostic work several times. If you combine dermatoscopy and clinical diagnosis, you can increase the likelihood of timely detection of melanoma. In clinical diagnosis, specialists use the so-called "ABCD rule" (it stands for asymmetry, borders, hue and size). If the doctor sees that the tumor meets this rule, then, most likely, it is melanoma.
Recently, more and more doctors are paying attention to digital dermatoscopy, which helps to see a full picture of the nevus. This method is especially indispensable in the diagnosis of melanoma in the early stages of development.
Basal cell dermatoscopy
Basal cell carcinoma or basal cell carcinoma is a common type of skin cancer (76% of cases). The main difference of this tumor is its benign course. It is very important to identify basalomas at the initial stage, as it is at this time that it does not yet give metastases and is easily treatable.
Dermatoscopy is one of the most accurate methods for diagnosing a basal cell tumor. It differs in that it is not traumatic and helps to quickly carry out the necessary examination of the skin. Thanks to dermatoscopy, a doctor can accurately determine the basaloma, which, in clinical examination, is often confused with some other skin diseases: trichoepithelioma, psoriasis, dermatofibroma, dermatitis, syphilis, melanoma.
The main signs of a basal cell that the specialist discovers during the dermatoscopy are:
- Well-marked homogeneous zones, which are distinguished by a bright red or white color.
- The presence of small ulcers.
- The structure is dominated by capillaries of branching nature.
Dermatoscopy of nevus
When a new birthmark appears or the old nevus is quickly changed, it is very important to consult a specialist immediately. He will conduct dermatoscopy, which will help in time to detect skin cancer and conduct the necessary treatment. The main feature of this method in the diagnosis of nevus can be called the fact that it helps to see even the smallest changes. Thanks to dermatoscopy, the doctor conducts the most thorough and accurate analysis of the nevus. This is because the dermatoscope allows you to increase the growth up to ten times.
What does the doctor pay attention to when examining the patient with a dermatoscope? First of all, the size, symmetry, hue, border and structure of the nevus are examined. If he is a benign entity, then his species will always be symmetrical. With the appearance of even an unobtrusive asymmetry, we can talk about the development of skin cancer.
Dermatoscopy of the nevus is 80% accurate and does not require the patient special preparation for the procedure. If you have birthmarks that worry you, it is important to perform dermatoscopy at least once a year.