RT Book, Section A1 Schaffer, Susan A1 Saghari, Sogol A1 Baumann, Leslie A2 Baumann, Leslie A2 Saghari, Sogol A2 Weisberg, Edmund SR Print(0) ID 1172446825 T1 Prevention and Treatment of Bruising T2 Cosmetic Dermatology: Principles and Practice, 2e YR 2009 FD 2009 PB The McGraw-Hill Companies, Inc. PP New York, NY SN 9780071490627 LK dermatology.mhmedical.com/content.aspx?aid=1172446825 RD 2024/04/19 AB Ecchymoses, also known as bruises, occur as a result of an injury to the capillaries, allowing blood to leak into the underlying tissue (Figs. 21-1 and 21-2). This is a benign process that resolves within a few days. Hematoma is a more serious entity, when an injury to a blood vessel results in the collection of blood in the surrounding tissue. The enlarging size of the hematoma may push on vital organs or lead to tissue necrosis; therefore, they should be avoided. Hematomas may be treated conservatively with pressure dressings, if active bleeding is not present, or by drainage, if there is active bleeding or the hematoma is enlarging in size.