Dermatoscopy
Pronunciation: der-ma-TOS-koh-pee
A non-invasive diagnostic technique using magnification and polarized light to examine skin lesions. Essential tool for melanoma detection and surgical planning.
Full Definition
Dermatoscopy, also known as dermoscopy, utilizes a specialized magnifying device called a dermatoscope to visualize subsurface skin structures invisible to the naked eye. The technique employs polarized or non-polarized light with magnifications typically ranging from 10x to 20x. Dermatoscopic examination reveals specific morphologic features such as pigment networks, globules, streaks, and vascular patterns that aid in diagnosis and surgical planning. This tool has revolutionized the early detection of melanoma and significantly improved diagnostic accuracy for pigmented lesions. Proper dermatoscopic documentation is increasingly important for medicolegal purposes and treatment planning.
Usage
Usage note: Preferred spelling over 'dermoscopy' in most medical literature.
In Context
- "Dermatoscopy revealed an asymmetric pigment network concerning for melanoma." — clinical assessment note
- "The surgeon used dermatoscopy to map surgical margins before excision of the atypical nevus." — pre-operative documentation