TY - CHAP M1 - Book, Section TI - Lip Lacerations A1 - Park, Chan W. A1 - Juliano, Michael L. A1 - Woodhall, Dana A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason PY - 2021 T2 - The Atlas of Emergency Medicine, 5e AB - Lip lacerations may result in significant cosmetic defects if not properly repaired. The lip has two significant anatomic landmarks: the mucosal border (divides intraoral and external portions) and the vermilion border (separates the lip mucosa from facial skin). Meticulous alignment of the vermilion border and its associated “white line” is the cornerstone of cosmetic repair. Lip anatomy may be distorted by the kinetic energy of the impact as well as the resultant edema surrounding the wound. Lacerations of the lip’s vermilion border may be partial or full thickness, compromising the underlying orbicularis oris. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1181056923 ER -