De Garengeot's hernia is a rare entity defined as the presence of the appendix within the femoral hernia sac. Although appendicitis is a common surgical emergency, appendix herniation into the groin results in a complex symptoms and signs, which make it difficult to diagnose clinically. We report a case of a 72-year-old male who had De Garengeot's hernia. Ultrasound and contrast-enhanced CT revealed a typical radiological feature of femoral hernia with the appendix herniating within femoral hernia sac. Surgical management of De Garengeot's hernia is controversial, and it is tailored according to the patient clinical situation and surgeon's preference. To the best of our knowledge, this is the first case that combines both CT and ultrasound findings with postoperative findings.

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