[Skip to Navigation]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 35.175.212.130. Please contact the publisher to request reinstatement.
skINsight
February 1, 2008

Dermoscopy of Lichenoid Regressing Solar Lentigines

Author Affiliations
 

ASHFAQ A.MARGHOOBMDALONSCOPEMD

Arch Dermatol. 2008;144(2):284. doi:10.1001/archdermatol.2007.61

The lesions are from the back of a 69-year-old woman (Figure 1), the dorsal surface of the left hand of an 82-year-old woman (Figure 2), the chest of a 75-year-old man (Figure 3), and the chest of a 72-year-old man (Figure 4). All 4 lesions reveal the presence of blue-gray localized coarse granules (arrowheads) typical of benign lichenoid keratosis (BLK). The pattern is similar to lichenoid regressing seborrheic keratosis, as noted previously,1 and supports the concept that BLK is a regressive response to a preexisting skin tumor. These 4 cases illustrate the intermediate stage of this phenomenon in solar lentigines. It is important to dermoscopically distinguish BLK from regressing melanoma. In melanomas, the blue-gray granules may be finer and more multifocal but it is likely that other dermoscopic patterns will help identify the melanomas. For lesions of concern, a biopsy is necessary to confirm the diagnosis.

×