Acne mimickers

Acne is now considered a chronic disease and may occur at any age group contrary to previous beliefs. The presentation of acne is polymorphic and can manifest as comedones, papules, pustules, nodules, cysts, sinuses, and varying kinds of scars. It may occur in varied areas of the body. Although the diagnosis of acne is rarely difficult for the dermatologist, the occurrence of acne in different age groups, the pleomorphic lesions, the varying distribution, and its association with various systemic disorders or syndromes may cause difficulties in diagnosis even for an astute clinician. Here, we review various diagnostic possibilities of acne and their differentiating characteristics.