RESUMEN
Speckled lentiginous nevus is characterized by numerous, small, darkly-pigmented speckles on the background of tanned hyperpigmentation. The tan macule or patch of speckled lentiginous nevus shows the histologic features of lentigo simplex. The speckled areas are characterized by various types of nevi including junctional, compound or dermal nevus. However, since speckled lentiginous nevus may present at birth and show the histologic features of congenital melanocytic nevus (CMN), some have speculated that it is a subtype of CMN. We present a case of speckled lentiginous nevus which occurred at birth and showed histologic features of CMN, thus supporting the notion that speckled lentiginous nevus is a subtype of CMN.
Asunto(s)
Hiperpigmentación , Lentigo , Nevo , Nevo Pigmentado , Parto , Triacetonamina-N-OxilRESUMEN
Speckled lentiginous nevus is circumscribed patch of hyperpigmentation with smaller, darker pigmented macules or papules within the patch. The background shows histologic features of lentigo simplex. The speckled areas show junctional or compound nevus. Association of speckled lentiginous nevus with multiple spitz nevi was rarely reported. We report a case of multiple spitz nevi arising in a giant speckled lentiginous nevus.
Asunto(s)
Hiperpigmentación , Lentigo , Nevo , Nevo de Células Epitelioides y FusiformesRESUMEN
Speckled lentiginous nevus(SLN) is characterized by a tan background patch on which more darkly pigmented macules and papules are randomly distributed. The presence of agminated Spitz nevi with SLN is well known, but a solitary Spitz nevus arising on a SLN is rare. We herein report a case of SLN with two Spitz nevi developed individually and congenital melanocytic nevus in a 9-year-old boy.
Asunto(s)
Niño , Humanos , Masculino , Nevo , Nevo de Células Epitelioides y Fusiformes , Nevo Pigmentado , Triacetonamina-N-OxilRESUMEN
We report a case of plexiform neurofibroma developed under the overlying speckled lentiginous nevus, which occurred in a 20 year-old man. In this patient and his family no other signs of von Recklinghausens disease were found. Discussion is focussed on the fact that both plexiform neurofibroma and speckled lentigmous nevus, which represent a defect in the neural crest, occurred in the same area of the skin.