[Spiegelian hernia : a report of three cases].

Spiegelian hernia is a rare anterior abdominal wall hernia, described in 1764 by a Hungarian surgeon. It often remains undiagnosed because of its unusual location on the semilunar line, laterally to the rectus muscle. CT presentation is specific. Because of its high risk of strangulation, a surgical management should be proposed, even in case of fortuitous discovery. We present three cases of Spiegelian hernia, two fortuitously discovered and one detected on the occasion of a small bowel incarceration. We also evoke a similar case of eventration on the lunate line requesting the knowledge of the detailed surgical antecedents for diagnosis.