To validate dermoscopy as a real-time noninvasive diagnostic imaging technique for actinic keratosis (AK).

We report the case of a 35-year-old woman with deep-red asymptomatic macules on the plantar and dorsal skin of the right great toe. Histopathologic fi ndings were compatible with Angioma serpiginosum. Immunohistochemical stains for estrogens and progesterone receptors were negative. Dermoscopy showed an erythematous parallel ridge pattern with double rows of irregular dots and globules. We report an unusual case of angioma serpiginosum with acral volar skin involvement. The dermoscopic features described may aid in the diagnosis of AS in this specifi c skin area. Acral volar skin involvement must be included in the clinical spectrum of Angioma serpiginosum and in the differential diagnosis of acral vascular lesions.

Depilation techniques have gain popularity in the last few decades. Nowadays there are available a wide variety of lasers as well as intense pulsed light for depilation. However, little is known about the long-term effects of these procedures when melanocytic nevi are affected by them. We report the cases of three patients where we observed clinical, dermoscopic and histopathological changes secondary to laser therapy and intense pulsed light depilation, respectively. We believe that it is necessary to perform further studies to prove the absence of malignant transformation so that we will be able to set up recommendations in those patients with a personal or family history of malignant melanoma and/or dysplastic nevi.

We report a 13-year-old boy with a petechial rash on the genital area, in which primary infection by Parvovirus B19 was demonstrated by seroconversion. To our knowledge this is the first instance of an exanthem arising from Parvovirus B19 with an exclusive genital distribution without typical acral involvement.

No abstract