Abstract
De Garengeot's hernia is the presence of an appendix in a femoral hernia and can be a rare cause of an acute groin swelling. Here, we present a case report of an elderly woman who was referred to us with a short history of a painful, tender lump in the right groin associated with nausea and vomiting. Her inflammatory markers were raised, and to establish a final diagnosis, an urgent CT scan was requested which showed a blind ending tubular structure in a hernia sac. She was taken to the theatre for urgent exploration of the groin which revealed that it was a femoral hernia, the sac of which contained gangrenous appendix, the base of which could not be accessed through the groin incision and, therefore, a lower midline laparotomy incision was made and a formal appendicectomy was done.