Abstract
A 73-year-old man presented with a complaint of recurrent deep neck abscess in spite of repeateddrainage at a local hospital. He had suffered from stenosis of the left external auditory canal due to injurywhile Judo training. CT scan showed a diffuse cloudiness of the mastoid cavity with bony destruction and anabscess formed behind the left sternocleidomastoid muscle. Radical mastoidectomy and drainage of the neckabscess were performed under general anesthesia. The mastoid cavity was filled with pus and cholesteatomadebris. Concomitant diabetes mellitus seemed to have facilitated exacerbation of infection inside of the earcanal stenosis. Postoperative course was uneventful.