Abstract
A 71-year-old man attended the ER in our hospital with severe lower abdominal pain and, under the diagnosis of acute enteritis, was followed up conservatively. Two days later, he was admitted to our hospital for regular hemodialysis, at which time his symptoms had persisted. Abdominal computed tomography (CT) revealed free air and we diagnosed perforated peritonitis. We started conservative therapy because the abdominal pain did not become worse. Five days after admission, no major change was seen in his symptoms and follow-up CT showed a pericecal abscess. We performed percutaneous drainage of the pericecal abscess and the patient's symptom improved immediately. Six months later, we performed a total colonoscopy and follow-up CT. We found cecal diverticula without inflammation and the cecal abscess had disappeared.
