Circles White White circles in each of these conditions correspond to keratin in the follicular opening or infundibulum. Apparent white circles are sometimes just follicular openings in a benign nevus.
Solar K Also look for 4 dots in the middle of a white circle in actinic keratoses. These are also known as rosettes. Dot vesels are also seen here.
SCC Note the glomerular or red clod vessels as well as the white circles
Discoid Lupus White circles and white clods represent keratin thickening or plugs in the follicular infundibulum.
Lichen sclerosus Similar features to discoid lupus.
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