Resumen:
Acne is a multifactorial disorder of the pilosebaceous unit. Its clinical picture can vary significantly, from mild comedonal acne to fulminant systemic disease. Although all age groups can be affected by its many variants, acne is primarily a disorder of the adolescence. Acne has an undeniable psychosocial impact; affected individuals have been associated with an increased social isolation and depression. The last insights into the pathogenesis of the acne have aided significantly in further defining the subtypes of acne and establishing effective treatment regimens. The term rosacea includes a constellation of signs and symptoms: persistent facial erythema, telangiectasias, inflammatory papules and pustules, ocular inflammation and phymatous changes, primarily of the nose. Although its cause remains unknown, there seems to be an abnormal vasomotor response to thermal and other stimuli.
