Dermoscopy
Dermoscopy
Dermoscopy (pronounced: der-MOS-ko-pee), also known as dermatoscopy or epiluminescence microscopy, is a non-invasive, in vivo technique primarily used for the examination of skin lesions. The term is derived from the Greek words derma, meaning skin, and skopein, meaning to look or to observe.
History
The first documented use of dermoscopy dates back to the early 20th century, when German dermatologist Johann Saphier used a pocket magnifying lens to examine skin lesions. The technique has since evolved, with the development of more sophisticated instruments and the introduction of digital dermoscopy in the late 20th century.
Procedure
In a dermoscopy examination, a dermatoscope is used. This device provides illumination and magnification to visualize features of skin lesions that are not visible to the naked eye. The dermatoscope is applied to the skin using either a liquid medium, such as alcohol or oil, or a dry method with cross-polarized light.
Applications
Dermoscopy is primarily used in the diagnosis of melanoma, but it can also be used to identify non-melanoma skin cancers, benign skin lesions, parasitic infestations, and other dermatological conditions. It is also used in trichoscopy, the dermoscopic examination of the hair and scalp.
Advantages and Limitations
The main advantage of dermoscopy is its ability to improve the diagnostic accuracy of skin lesions, particularly melanoma. However, its effectiveness depends on the skill and experience of the practitioner. It is also limited in its ability to diagnose lesions located in the dermis or subcutaneous tissue.
Related Terms
See Also
External links
- Medical encyclopedia article on Dermoscopy
- Wikipedia's article - Dermoscopy
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