Repair of Umbilical Hernias in Swine
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A hernia is formed by the protrusion of . certain abdominal organs through an acquired or congenital opening in the abdominal wall. The hernia always has three constituents present which include the hernial ring; the hernial sac which is composed of the peritoneum; and hernial contents which may include a loop of intestine or a portion of the uterus, stomach or omentum. According to their location, hernias are classified as umbilical, inguinal, scrotal, ventral, peritoneal or diaphragmatic.