RT Book, Section A1 Tannous, Zeina A1 Avram, Mathew M. A1 Tsao, Sandy A1 Avram, Marc R. SR Print(0) ID 1175821791 T1 Acne Vulgaris T2 Color Atlas of Cosmetic Dermatology, 2e YR 2011 FD 2011 PB The McGraw-Hill Companies, Inc. PP New York, NY SN 9780071635035 LK dermatology.mhmedical.com/content.aspx?aid=1175821791 RD 2023/10/03 AB Acne vulgaris is a chronic inflammatory disease of the pilosebaceous unit. Acne lesions favor the face, neck, upper back, chest, and upper arms. Multiple clinical variants exist and they include comedonal acne, papulopustular acne, nodulocystic acne, acne conglobata, and acne fulminans.