ABSTRACT
Spigelian hernia is an uncommon hernia of the ant. abdominal wall. Because of its insidious nature and nonspecific physical findings, the diagnosis of this hernia is often not made. Typically, the hernia orifice is small, and strangulation of the contents of the hernial sac can occur. Computed tomography permits the distinction between Spigelian hernia and other anterial abdominal wall or intraabdominal masses. Spigelian hernia requires surgical correction to prevent complication of acute abdomen with strangulation or incarceration. The typical site of a Spigelian hernia is at the level of the semicircular fold of Douglas known as the arcuate line. Spigelian hernia can occur above the umbilicus, high Spigelian hernia, but its very unusual site. We report a case of Spigelian hernia on upper abdomen and review the literature.