TY - CHAP M1 - Book, Section TI - Hernias & Other Lesions of the Abdominal Wall A1 - Deveney, Karen E. A2 - Doherty, Gerard M. PY - 2015 T2 - CURRENT Diagnosis & Treatment: Surgery, 14e AB - An external hernia is an abnormal protrusion of intra-abdominal tissue through a fascial defect in the abdominal wall.* Although most hernias (75%) occur in the groin, incisional hernias represent an increasing proportion (15%-20%), with umbilical and other ventral hernias comprising the remainder. Generally, a hernial mass is composed of covering tissues (skin, subcutaneous tissues, etc), a peritoneal sac, and any contained viscera. Particularly if the neck of the sac is narrow where it emerges from the abdomen, bowel protruding into the hernia may become obstructed or strangulated. If the hernia is not repaired early, the defect may enlarge and operative repair may become more complicated. The definitive treatment of hernia is operative repair. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accesssurgery.mhmedical.com/content.aspx?aid=1105491643 ER -