Erosions = السحجات |
EROSION
An erosion is a moist, circumscribed, depressed lesion that results from loss of a portion or all of the viable epidermal or mucosal epithelium. The defect extending to the most superficial part of the dermis may result in pinpoint bleeding in a sieve-like fashion. Erosions may result from trauma, detachment of epidermal layers with maceration, rupture of vesicles or bullae, or epidermal necrosis, for example. Extensive erosions may result in large areas of raw denudation. Unless they become secondarily infected, erosions do not scar. A clinical example is toxic epidermal necrolysis
|