Abstract
We report the case of an elderly male patient with extraperitoneal space and perianal abscesses caused by a swallowed fish bone.
A 73-year-old man was brought to our hospital with anal pain. Digital rectal examination revealed a fish bone about 4-cm-long in the rectum, which was removed. Four days later, the patient was admitted to the hospital with lower abdominal pain, anal pain and high fever. Abdominal CT revealed extraperitoneal space and perianal abscesses. The patient was diagnosed as having delayed penetration of the rectum caused by the swallowed fish bone, and emergency operation was performed. Intraoperatively, abscesses were found in the extraperitoneal space. Percutaneous drains were left in the paravesical space and left pararectal space. A drain was also inserted into the perianal abscess. The postoperative course was uneventful, and our minimally invasive surgery was thought to have been successful for effective drainage of the abscesses in this patient.