Acne conglobata is an uncommon and unusually severe form of acne characterized by burrowing and interconnecting abscesses and irregular scars (both keloidal and atrophic), often producing pronounced disfigurement. Acne conglobata can be associated with hidradenitis suppurativa. Note that hidradenitis suppurativa occurs more frequently in patients with acne than in other patients. The hidradenitis may extensively involve the perineal and gluteal regions.
Local symptoms of common acne include pain, tenderness, and/or erythema. Systemic symptoms are most often absent in patients with acne.
Studies have found that women with PCOS have slightly increased comedones in the forehead, perioral, or jawline areas; otherwise, acne lesion counts, types, and regional burden are largely the same between women with and without PCOS.
Nodulocystic acne is characterized by comedones, inflammatory lesions, and large nodules greater than 5 mm in diameter. Scarring is often evident.
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Cite this: William James. Fast Five Quiz: Acne Practice Essentials - Medscape - Jan 15, 2020.