Nikolas
Created page with "== Benign epithelial lesions == Seborrheic keratosis is a benign neoplasm of squamous cells which mostly affects the elderly. It is a round, exophytic plaque that are classically described as if they were “stuck on” the skin. Histology shows papillomatosis (hyperplasia of the dermal papillae), Hyperkeratosis and keratin-filled cysts. They’re not associated with sun exposure. The sudden onset of many seborrheic keratoses is called Leser-Trélat sign and is a paraneo..."
