Field melanin mapping of the hairless scalp

Background

Mottled subclinical melanoderma (MSM) is frequently seen on facial skin using the ultraviolet light enhanced visualization (ULEV) method. The corresponding aspect on the hairless scalp remains unknown.



Objective

To explore the field distribution of melanin on the scalp of fair-skinned Caucasian subjects.



Method

The scalp was examined in 43 men with androgenic alopecia. The Visioscan® camera provided the ULEV pictures. Another optical (Visioface® Quick) device was used under white light illumination followed by colour contrast enhancement. This was reached after specific computer filtration of the cyan hue wavelengths.



Results

Under white light illumination, the scalp looked ...

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