Medicine for dummies

cause any symptoms Congenital melanocytic naevi are usually asymptomatic, however, some may be itchy, particularly larger lesions. It is thought there may be reduced function of sebaceous (oil) and eccrine (sweat) glands, which may result in skin dryness and a heightened sensation of itch. The overlying skin may become fragile and erode or ulcerate. Deep nests of melanocytes in the dermis may weaken the bonds between the epidermis and the dermis and account for skin fragility. Congenital melanocytic naevi are often unsightly, especially when extensive, ie large or giant congenital melanocytic naevi. They may therefore result in anxiety and impaired self image, especially when the lesions are in visible areas. Giant melanocytic naevi, and to a lesser degree small lesions, are associated with increased risk of developing cutaneous melanoma, neurocutaneous melanoma and rarely other tumours (see below). causes congenital melanocytic naevi . Congenital melanocytic naevi are caused by ...