Q-switched ruby laser treatment of labial lentigines in Peutz-Jeghers syndrome.

BACKGROUND. The Q-switched ruby laser emits energy with a 694-nm wavelength and has a pulse duration in the nanosecond range, which allows selective treatment of benign pigmented lesions. Labial and perioral pigmented macules associated with Peutz-Jeghers syndrome are often numerous and cosmetically disfiguring. RESULTS/CONCLUSION. We report successful treatment of these lentigines with the Q-switched ruby laser and consider it the treatment of choice for these lesions.