Abstract
We report on a case of a periappendicular abscess due to late-onset mesh infection after an inguinal hernia repair. A 69-year-old man came to our hospital with right inguinal swelling and pain. A tension-free mesh hernioplastry had been performed for a right inguinal hernia five years and ten months previously. On physical examination, the patient's right hernia repair inguinal scar was reddish and tender. Computed tomography revealed a right inguinal phlegmon and an abscess between the appendix and the plug. The patient was treated with antibiotics for one week but the abscess cavity did not get any smaller, so we resected the appendix and removed the plug and the abscess. Culture of the abscess revealed Bacteroides sp. The pathological examination revealed inflammation of the granulation tissue around the plug and no inflammation of the appendix. Our diagnosis was a periappendicular abscess due to late-onset mesh infection. The patient recovered uneventfully.